| Consider some action to be taken. The action is under consideration because it causes some benefit, worth $A. The action may cause some public-relations fallout, which in turn will cause some amount of lost business (or analogous malus). The total losses caused by public-relations effects are a continuous random variable; and a complicated one, because the causality chain between action and the final losses involves multiple random events. But, it has some expected value, $B > $0. (Disregard outliers, so as to better approximate the median outcome rather than the mean outcome.) Finally, the action will inevitably cost some resources to implement, worth a total of $C. (Again, all three quantities $A, $B and $C are nonnegative.) We can then evaluate whether the action may be taken. That question is equivalent to the following: "Is it legal? And if so, then does it hold that $A > $B + $C?" (In the larger context, then, if multiple actions may be taken, then choosing which single one should be taken is a matter of maximizing that same inequality rather than truth-testing it.) * * * * * Why should we use any decision-making process other than the above? Equivalently: why should we take into account any further "morality", beyond merely legality plus long-term expected-value for oneself? |
That's why.