I think its more about what do you want to leave behind you ....sure, a given defense technical discovery or innovation may, in the right circumstances, used by

I think its more about what do you want to leave behind you ....sure, a given defense technical discovery or innovation may, in the right circumstances, used by the right people, prevent suffering, but, if your goal is to help others it seems a lot more direct to be a teacher, or a doctor, etc.