"You could say develop a target selection approach that is less likely to blow up a school halfway across the world than existing approaches."

Sure, you save some lives. Then the military realizes they can apply violence far more liberally than they ever could before. Subsequent conflicts result in a whole lot more death for the losing side. Maybe a lot more "militar-aged men" end up as cannon fodder for being in the wrong place at the wrong time.

Or... do those lives not count? Depends on your definition of "evil," I guess: I'm using the Christian one.