There are people who equate power over other people with a carte blanche licence to do to them whatever they see fit. They live simpler lives than most, unencumbered by any kind of moral concerns. The rest of us all, we're just Non-Player Characters in the great game they are the heroic protagonist of. If they could, they'd probably be deeply offended that we don't just stop existing and de-spawn when their game ends. I don't think they ever realize the real name of each of them is Ozymandias...