I agree that a sizable component of wisdom is the choice of utility functions, and some UFs are certainly less wise than others, like in your example (I nearly included it in the OP, actually). However, the means of maximizing utility matters just as much, as some of those actions might backfire spectacularly. For example, a preemptive nuclear strike could be considered a means to secure future (if you are JFK during the Cuban missile crisis), but one can hardly call it wise. Hence my point about calibration.
I agree that a sizable component of wisdom is the choice of utility functions, and some UFs are certainly less wise than others, like in your example (I nearly included it in the OP, actually). However, the means of maximizing utility matters just as much, as some of those actions might backfire spectacularly. For example, a preemptive nuclear strike could be considered a means to secure future (if you are JFK during the Cuban missile crisis), but one can hardly call it wise. Hence my point about calibration.