Act Versus Rule Utilitarianism

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In the textbook, Questions that Matter: An Invitation to Philosophy, utilitarianism is defined as “The ethical doctrine that an action is right if, and only if, it promotes the greatest happiness for the greatest number of people” (Miller and Jensen 376). There are two distinguishable positions within utilitarianism: rule-utilitarianism and act-utilitarianism. Rule-utilitarianism seeks to find which rule should be applied to a situation to bring about the greatest happiness to the most people, whereas act-utilitarianism seeks to find which action should be applied to bring about the greatest happiness to the greatest number of people. In this paper I will argue that rule-utilitarianism is the more plausible of the two positions because society cannot function without set rules of conduct.
In his article, Extreme and Restricted Utilitarianism, J.J.C. Smart renames act-utilitarianism as extreme utilitarianism, and he describes it like this: “According to this doctrine we test individual actions by their consequences, and general rules, like ' keep promises ', [sic] are mere rules of thumb which we use only to avoid the necessity of estimating the probable consequences of our actions at every step” (Smart 344). Smart is saying that extreme utilitarianism weighs actions by their possible consequences, so if breaking a rule results in greater happiness than keeping the rule does, the rule must be broken. Smart suggests that extreme utilitarianism is most closely aligned to the viewpoint of Jeremy Bentham, the founder of modern utilitarianism (Miller and Jensen 380). Bentham argued that the process of making a moral decision involved weighing all possible courses and then deciding on the course that resulted in the greatest amount of ...

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...more than any society could tolerate the doctrine as the exclusive basis for social action” (Kaplan 228). This statement is important because it takes away from Smart’s claims. Smart seeks to show that extreme utilitarianism is superior to restricted utilitarianism, and he wants to show that the latter is irrational. Smart tries to make that argument that extreme utilitarians consider the principle of utility as the most important principle. So therefore, in Smart’s argument, utility is utmost importance, and it is the deciding factor of which viewpoint is superior. The problem I see with Smart’s statement is that it still causes act-utilitarianism to remain inconsistent and impractical. How can we be sure that the weighed utility of every action is indeed the best course of action for the most amount of people instead of just the best course of action for ourselves?

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