There was an old Twilight Zone where a man came in to a shop with a box with a button. He told the shopkeeper that he'd give him a million dollars if he pressed the button but he warned him that someone he didn't know would die when he pressed it. He argued that people die all the time and that he wouldn't really be murdering anyone. He would get the million and he could live out the rest of his life in comfort.
Well the man thought about it and concluded that he would press the button because it wasn't anyone he knew anyway. The button was pushed. The man gave him a million dollars and he grabbed the box and was about to leave when the shopkeeper asked him a question.
"What are you going to do now?"
"I'm going to give someone else a chance to press the button."
"Someone else?"
"Don't worry. It will be someone you don't know."