I'm glad I don't have to be around you in any dark alleys.
I have little problem with genocidal maniacs losing their ability to draw breathe, nice to know you would prefer their killing spree to contine though
The world thanks you.
Sometimes being the Hero means you have to do something that is against your morality. Superman made the choice to kill and live with that guilt for the rest of his life in the same way Batman refused to save Ra's in Begins because some EVIL cannot be reasoned with.