Yes, this is obviously (to me) the right thing to do if possible. For example, we put down rabid dogs before they bite anyone (as far as I know). I can’t think of any real-world human-applicable examples off the top of my head, though—although some groups are statistically more liable to crime than others, the utility saved would be far more than outweighed by the disutility of the mass imprisonment.
Yes, this is obviously (to me) the right thing to do if possible. For example, we put down rabid dogs before they bite anyone (as far as I know). I can’t think of any real-world human-applicable examples off the top of my head, though—although some groups are statistically more liable to crime than others, the utility saved would be far more than outweighed by the disutility of the mass imprisonment.