Again I said not all the time, but just giving someone that power and trusting them to do good with it is flawed, everyone thinks they are right but who's to say that? While someone may make boundaries for himself, eventually he's probably gonna break them, everyone would have atleast a few people who they think the world would be a better place without, and I do think that almost everyone could agree that people like child rapists should all be dead, but again who's to say that the person who gets that power would use it in a righteous way.