It’s because the individual is more important than the community. I suppose you can call it the Harold Shipman clause of medical ethics.

You see, according to US doctrine, you are the only person that matters. Therefore, if you let other people die for fun, it’s okay. They’re part of the community, not you, the individual.

This has already happened, many years ago. I know this because everyone but me is actually a highly sophisticated robot that resembles a member of my species. I’m onto you.