1-4
We Live inCommunities
(London, England at night from space)
1-4
Courtesy of NASA
5.
1-5
1-5
The Ethical Pointof View
• Most everyone shares “core values”, desiring:
– Life
– Happiness
– Ability to accomplish goals
• Two ways to view world
– Selfish point of view: consider only own self and its
core values
– Ethical point of view: respect other people and their
core values
6.
1-6
1-6
Defining Terms
• Society
–Association of people organized under a system of rules
– Rules: advance the good of members over time
• Morality
– A society’s rules of conduct
– What people ought / ought not to do in various situations
• Ethics
– Rational examination of morality
– Evaluation of people’s behavior
7.
1-7
Analogy Showing Difference
betweenMorality and Ethics
1-7
An analogy explaining the difference between ethics and morality. Imagine
society as a town. Morality is the road network within the town. People
doing ethics are in balloons floating above the town.
8.
1-8
1-8
Why Study Ethics?
•Ethics: a way to decide the best thing to do
• New problems accompany new
technologies
• “Common wisdom” may not exist for novel
situations brought about by new
technologies
9.
1-9
Scenario 1
• Alexis,a gifted high school student, wants to
become a doctor. Because she comes from a
poor family, she will need a scholarship in order
to attend college. Some of her classes require
students to do extra research projects in order to
get an A. Her high school has a few older PCs,
but there are always long lines of students
waiting to use them during the school day. After
school, she usually works at a part-time job to
help support her family.
1-9
10.
1-10
Scenario 1
• Oneevening Alexis visits the library of a private
college a few miles from her family’s apartment, and
she finds plenty of unused PCs connected to the
Internet. She surreptitiously looks over the shoulder
of another student to learn a valid login/password
combination. Alexis returns to the library several
times a week, and by using its PCs and printers she
efficiently completes the extra research projects,
graduates from high school with straight A’s, and
gets a fullride scholarship to attend a prestigious
university.
1-10
11.
1-11
1-11
Scenario 1
• DidAlexis do anything wrong?
• Who benefited from Alexis’s course of action?
• Who was hurt by Alexis’s course of action?
• Did Alexis have an unfair advantage over her high school
classmates?
• Would any of your answers change if it turns out Alexis did
not win a college scholarship after all?
• Are there better ways Alexis could have achieved her
objective?
• What additional information, if any, would help you answer
the previous question?
12.
1-12
Scenario 2
• Anorganization dedicated to reducing spam tries to get
Internet service providers (ISPs) in an East Asian country
to stop the spammers by protecting their mail servers.
When this effort is unsuccessful, the antispam
organization puts the addresses of these ISPs on its
blacklist. Many ISPs in the United States consult the
blacklist and refuse to accept email from the blacklisted
ISPs. This action has two results. First, the amount of
spam received by the typical email user in the United
States drops by 25 percent. Second, tens of thousands of
innocent computer users in the East Asian country are
unable to send email to friends and business associates
in the United States.
1-12
13.
1-13
1-13
Scenario 2
• Didthe anti-spam organization do anything wrong?
• Did the ISPs that refused to accept email from the
blacklisted ISPs do anything wrong?
• Who benefited from the organization’s action?
• Who was hurt by the organization’s action?
• Could the organization have achieved its goals through a
better course of action?
• What additional information, if any, would help you
answer the previous question?
14.
1-14
Scenario 3
• Inan attempt to deter speeders, the East Dakota State Police (EDSP)
installs video cameras on all of its freeway overpasses. The cameras
are connected to computers that can reliably detect cars traveling
more than five miles per hour above the speed limit. These computers
have sophisticated image recognition software that enables them to
read license plate numbers and capture high resolution pictures of
vehicle drivers. If the picture of the driver matches the driver’s license
photo of one of the registered owners of the car, the system issues a
speeding ticket to the driver, complete with photo evidence. Six
months after the system is put into operation, the number of people
speeding on East Dakota freeways is reduced by 90 percent.
• The FBI asks the EDSP for real-time access to the information
collected by the video cameras. The EDSP complies with this request.
Three months later, the FBI uses this information to arrest five
members of a terrorist organization.
1-14
15.
1-15
1-15
Scenario 3
• Didthe East Dakota State Police do anything wrong?
• Who benefited from the actions of the EDSP?
• Who was harmed by the actions of the EDSP?
• What other courses of action could the EDSP have taken
to achieve its objectives?
• What additional information, if any, would help you
answer the previous question?
16.
1-16
Scenario 4
• Youare the senior software engineer at a start-up company
developing an exciting new product that will allow salespeople to
generate and email sales quotes and customer invoices from
their smartphones.
• Your company’s sales force has led a major corporation to
believe your product will be available next week. Unfortunately, at
this point the software still contains quite a few bugs. The leader
of the testing group has reported that all of the known bugs
appear to be minor, but it will take another month of testing for his
team to be confident the product contains no catastrophic errors.
• Because of the fierce competition in the smartphone software
industry, it is critical that your company be “first to market.” To the
best of your knowledge, a well-established company will release
a similar product in a few weeks. If its product appears first, your
start-up company will probably go out of business.
1-16
17.
1-17
1-17
Scenario 4
• Shouldyou recommend release of the product next
week?
• Who will benefit if the company follows your
recommendation?
• Who will be harmed if the company follows your
recommendation?
• Do you have an obligation to any group of people
that may be affected by your decision?
• What additional information, if any, would help you
answer the previous question?
18.
1-18
1-18
More on Ethics
•Ethics: rational, systematic analysis
– “Doing ethics”: answers need explanations
– Explanations: facts, shared values, logic
• Ethics: voluntary, moral choices
• Workable ethical theory: produces
explanations that might be persuasive to a
skeptical, yet open-minded audience
1-22
1-22
What Is Relativism?
•Relativism
– No universal norms of right and wrong
– One person can say “X is right,” another
can say “X is wrong,” and both can be right
• Subjective relativism
– Each person decides right and wrong for
himself or herself
– “What’s right for you may not be right for
me”
23.
1-23
1-23
Case for SubjectiveRelativism
• Well-meaning and intelligent people
disagree on moral issues
• Ethical debates are disagreeable and
pointless
24.
1-24
1-24
Case Against SubjectiveRelativism
• Blurs distinction between doing what you
think is right and doing what you want to
do
• Makes no moral distinction between the
actions of different people
• SR and tolerance are two different things
• Decisions may not be based on reason
• Not a workable ethical theory
1-26
1-26
Cultural Relativism ina Nutshell
• What is “right” and “wrong” depends upon
a society’s actual moral guidelines
• These guidelines vary from place to place
and from time to time
• A particular action may be right in one
society at one time and wrong in other
society or at another time
27.
1-27
1-27
Case for CulturalRelativism
• Different social contexts demand different
moral guidelines
• It is arrogant for one society to judge
another
28.
1-28
1-28
Case Against CulturalRelativism
• Because two societies do have different moral views
doesn’t mean they ought to have different views
• It doesn’t explain how moral guidelines are determined
• What if there are no cultural norms?
• It doesn’t account for evolution of moral guidelines.
• It provides no way out for cultures in conflict
• Existence of many acceptable practices does not imply
all practices are acceptable (many/any fallacy)
• Societies do, in fact, share certain core values
• Only indirectly based on reason
• Not a workable ethical theory
1-30
1-30
Overview of DivineCommand Theory
• Good actions: those aligned with God’s
will
• Bad actions: those contrary to God’s will
• Holy books reveal God’s will
• We should use holy books as moral
decision-making guides
1-32
1-32
Case for DivineCommand Theory
• We owe obedience to our Creator
• God is all-good and all-knowing
• God is the ultimate authority
33.
1-33
1-33
Case Against DivineCommand Theory
• Different holy books disagree
• Society is multicultural, secular
• Some modern moral problems not
addressed in scripture
• “The good” ≠ “God” (equivalence fallacy)
• Based on obedience, not reason
• Not a workable ethical theory
1-35
Definition of EthicalEgoism
• Each person should focus exclusively on
his or her self-interest
• Morally right action: that action that
provides self with maximum long-term
benefit
• A version of this philosophy espoused by
Ayn Rand, author of The Fountainhead and
Atlas Shrugged
1-35
36.
1-36
Case for EthicalEgoism
• It is practical since we are already inclined to do
what’s best for ourselves
• It’s better to let other people take care of
themselves
• The community can benefit when individuals put
their well-being first
• Other moral principles are rooted in the principle
of self-interest
1-36
37.
1-37
Case Against EthicalEgoism
• An easy moral philosophy may not be the best moral
philosophy
• We know a lot about what is good for someone else
• Self-interest can lead to blatantly immoral behavior
• Other moral principles are superior to principle of self-
interest
• People who take the good of others into account lead
happier lives
• By definition, does not respect the ethical point of view
• Not a workable ethical theory
1-37
1-39
1-39
Critical Importance ofGood Will
• Good will: the desire to do the right thing
• Immanuel Kant: Only thing in the world
that is good without qualification is a good
will
• Reason should cultivate desire to do right
thing
1-41
1-41
Illustration of 1st
Formulation
•Question: Can a person in dire straits make a promise
with the intention of breaking it later?
• Proposed rule: “I may make promises with the intention
of later breaking them.”
• The person in trouble wants his promise to be believed
so he can get what he needs.
• Universalize rule: Everyone may make & break
promises
• Everyone breaking promises would make promises
unbelievable, contradicting desire to have promise
believed
• The rule is flawed. The answer is “No.”
42.
1-42
1-42
Categorical Imperative (2nd
Formulation)
Actso that you treat both yourself
and other people as ends in themselves
and never only as a means to an end.
This is usually an easier formulation to work
with than the first formulation of the
Categorical Imperative.
1-44
1-44
Plagiarism Scenario
• Carla
–Single mother
– Works full time
– Takes two evening courses/semester
• History class
– Requires more work than normal
– Carla earning an “A” on all work so far
– Carla doesn’t have time to write final report
• Carla purchases report and submits it as her own
work
45.
1-45
1-45
Kantian Evaluation (1st
Formulation)
•Carla wants credit for plagiarized report
• Rule: “You may claim credit for work performed
by someone else”
• If rule universalized, reports would no longer be
credible indicator’s of student’s knowledge, and
professors would not give credit for reports
• Proposal moral rule is self-defeating
• It is wrong for Carla to turn in a purchased report
46.
1-46
1-46
Kantian Evaluation (2nd
Formulation)
•Carla submitted another person’s work as
her own
• She attempted to deceive professor
• She treated professor as a means to an
end
– End: passing the course
– Means: professor issues grade
• What Carla did was wrong
47.
1-47
1-47
Case for Kantianism
•Rational
• Produces universal moral guidelines
• Treats all persons as moral equals
• Workable ethical theory
48.
1-48
Perfect and ImperfectDuties
• Perfect duty: duty obliged to fulfill without
exception
– Example: Telling the truth
• Imperfect duty: duty obliged to fulfill in
general but not in every instance
– Example: Helping others
1-48
49.
1-49
1-49
Case Against Kantianism
•Sometimes no rule adequately characterizes an
action
• Sometimes there is no way to resolve a conflict
between rules
– In a conflict between a perfect duty and an imperfect
duty, perfect duty prevails
– In a conflict between two perfect duties, no solution
• Kantianism allows no exceptions to perfect duties
• Despite weaknesses, a workable ethical theory
1-51
1-51
Principle of Utility
•Jeremy Bentham and John Stuart Mill
• An action is good if it benefits someone
• An action is bad if it harms someone
• Utility: tendency of an object to produce
happiness or prevent unhappiness for an
individual or a community
• Happiness = advantage = benefit = good =
pleasure
• Unhappiness = disadvantage = cost = evil =
pain
52.
1-52
1-52
Principle of Utility
(GreatestHappiness Principle)
An action is right (or wrong) to the extent
that it increases (or decreases) the
total happiness of the affected parties.
1-54
1-54
Act Utilitarianism
• Utilitarianism
–Morality of an action has nothing to do with intent
– Focuses on the consequences
– A consequentialist theory
• Act utilitarianism
– Add up change in happiness of all affected beings
– Sum > 0, action is good
– Sum < 0, action is bad
55.
1-55
1-55
Bentham: Weighing Pleasure/Pain
•Intensity - magnitude of the experience
• Duration - how long the experience lasts
• Certainty - probability it will actually happen
• Propinquity - how close the experience is in space and time
• Fecundity - its ability to produce more experiences of the same kind
• Purity - extent to which pleasure is not diluted by pain or vice versa
• Extent - number of people affected
56.
1-56
1-56
Highway Routing Scenario
•State may replace a curvy stretch of
highway
• New highway segment 1 mile shorter
• 150 houses would have to be removed
• Some wildlife habitat would be destroyed
57.
1-57
1-57
Evaluation
• Costs
– $20million to compensate homeowners
– $10 million to construct new highway
– Lost wildlife habitat worth $1 million
• Benefits
– $39 million savings in automobile driving costs
• Conclusion
– Benefits exceed costs
– Building highway a good action
58.
1-58
1-58
Case for ActUtilitarianism
• Focuses on happiness
• Down-to-earth (practical)
• Comprehensive
• Workable ethical theory
59.
1-59
1-59
Case Against ActUtilitarianism
• Unclear whom to include in calculations
• Too much work
• Ignores our innate sense of duty
• Susceptible to the problem of moral luck
1-61
1-61
Applying Principle ofUtility to Rules
• We ought to adopt moral rules which, if
followed by everyone, will lead to the
greatest increase in total happiness
• Act utilitarianism applies Principle of Utility
to individual actions
• Rule utilitarianism applies Principle of
Utility to moral rules
62.
1-62
1-62
Anti-Worm Scenario
• August2003: Blaster worm infected thousands of
Windows computers
• Soon after, Nachi worm appeared
– Took control of vulnerable computer
– Located and destroyed copies of Blaster
– Downloaded software patch to fix security problem
– Used computer as launching pad to try to “infect” other
vulnerable PCs
63.
1-63
1-63
Evaluation using RuleUtilitarianism
• Proposed rule: If I can write a helpful worm that
removes a harmful worm from infected computers
and shields them from future attacks, I should do so
• Who would benefit
– People who do not keep their systems updated
• Who would be harmed
– People who use networks
– People who’s computers are invaded by buggy anti-
worms
– System administrators
• Conclusion: Harm outweighs benefits. Releasing
anti-worm is wrong.
64.
1-64
1-64
Case for RuleUtilitarianism
• Compared to act utilitarianism, it is easier
to perform the utilitarian calculus.
• Not every moral decision requires
performing utilitarian calculus.
• Moral rules survive exceptional situations
• Avoids the problem of moral luck
• Workable ethical theory
65.
1-65
1-65
Case Against Utilitarianismin General
• All consequences must be measured on a single scale.
– All units must be the same in order to do the sum
– In certain circumstances utilitarians must quantify the value of a
human life
• Utilitarianism ignores the problem of an unjust distribution
of good consequences.
– Utilitarianism does not mean “the greatest good of the greatest
number”
– That requires a principle of justice
– What happens when a conflict arises between the Principle of
Utility and a principle of justice?
• Despite weaknesses, both act utilitarianism and rule
utilitarianism are workable ethical theories
1-67
1-67
Basis of SocialContract Theory
• Thomas Hobbes
– “State of nature”
– We implicitly accept a social contract
• Establishment of moral rules to govern relations among
citizens
• Government capable of enforcing these rules
• Jean-Jacques Rousseau
– In ideal society, no one above rules
– That prevents society from enacting bad rules
68.
1-68
1-68
James Rachels’s Definition
“Moralityconsists in the set of rules,
governing how people are to
treat one another, that rational
people will agree to accept, for their
mutual benefit, on the condition that
others follow those rules as well.”
69.
1-69
1-69
Kinds of Rights
•Negative right: A right that another can
guarantee by leaving you alone
• Positive right: A right obligating others to
do something on your behalf
• Absolute right: A right guaranteed without
exception
• Limited right: A right that may be
restricted based on the circumstances
1-71
1-71
John Rawls’s Principlesof Justice
• Each person may claim a “fully adequate”
number of basic rights and liberties, so long as
these claims are consistent with everyone else
having a claim to the same rights and liberties
• Any social and economic inequalities must
– Be associated with positions that everyone has a fair
and equal opportunity to achieve
– Be to the greatest benefit of the least-advantaged
members of society (the difference principle)
72.
1-72
Rawls’s First Principleof Justice
1-72
Rawls’s first principle of justice states that each person may have
a “fully adequate” number of rights and liberties as long as they
are consistent with everyone else having the same rights and
liberties.
73.
1-73
Rawls’s Difference Principle
1-73
Supposeboth of these income tax structures will produce the same income to
the government. Plan A is a flat tax in which every citizen pays the same
percentage of his or her income; plan B is a progressive tax in which the
income tax rate gradually rises as a citizen’s income increases. Plan B does
not treat every citizen equally, but the inequality is justified under Rawls’s
difference principle because it is of greatest benefit to the most
disadvantaged.
74.
1-74
1-74
DVD Rental Scenario
•Bill owns chain of DVD rental stores
• Collects information about rentals from
customers
• Constructs profiles of customers
• Sells profiles to direct marketing firms
• Some customers happy to receive more
mail order catalogs; others unhappy at
increase in “junk mail”
75.
1-75
1-75
Evaluation (Social ContractTheory)
• Consider rights of Bill, customers, and mail order
companies.
• Does customer have right to expect name, address to
be kept confidential?
• If customer rents DVD from bill, who owns information
about transaction?
• If Bill and customer have equal rights to information,
Bill did nothing wrong to sell information.
• If customers have right to expect name and address
or transaction to be confidential without giving
permission, then Bill was wrong to sell information
without asking for permission.
76.
1-76
1-76
Case for SocialContract Theory
• Framed in language of rights
• Explains why people act in self-interest
without common agreement
• Provides clear analysis of certain
citizen/government problems
• Workable ethical theory
77.
1-77
1-77
Case Against SocialContract Theory
• No one signed contract
• Some actions have multiple
characterizations
• Conflicting rights problem
• May unjustly treat people who cannot
uphold contract
• Despite weaknesses, a workable theory
1-79
1-79
Objectivism vs. Relativism
•Objectivism: Morality has an existence
outside the human mind
• Relativism: Morality is a human invention
• Kantianism, utilitarianism, and social
contract theory examples of objectivism
1-82
Social Contract TheoryPerspective
• Everyone in society bears certain burdens in
order to receive certain benefits
• Legal system supposed to guarantee
people’s rights are protected
• Everything else being equal, we should be
law-abiding
• Should only break law if compelled to follow a
higher-order moral obligation
1-82
83.
1-83
Social Contract: APrima Facie
Obligation to Obey the Law
1-83
According to social contract theory, we have a prima facie
obligation to obeythe law.
84.
1-84
Kantian Perspective
• Everyonewants to be treated justly
• Imagine rule: “I may break a law I believe
to be unjust”
• If everyone acted according to this rule, then
laws would be subverted
• Contradiction: Cannot both wish to be
treated justly and allow laws to be subverted
1-84
85.
1-85
Rule Utilitarian Perspective
•What would be consequences of people ignoring
laws they felt to be unjust?
• Beneficial consequence: Happiness of people who
are doing what they please
• Harmful consequences: Harm to people directly
affected by lawless actions, general loss of
respect for laws, increased burden on criminal
justice system
• Harms greater than benefits
1-85
1-87
Insights Offered byVarious Theories
• Kantianism: Interactions with other people
should respect them as rational beings
• Utilitarians: You should consider the
consequences of an action before deciding
whether it’s right or wrong
• Social contract theory: We should
promote collective rights, such as the rights
to life, liberty, and property
1-87
88.
1-88
Mixing Theories
• Youcan consider duties and rights and
consequences when making moral decisions
• But what will you do when you can’t respect
rights absolutely and still maximize the total
beneficial consequences?
• Contemplation of what it means to be a person of
good character leads to a discussion of virtue
ethics (to be discussed in Chapter 9)
1-88