Well I can't speak for everyone else, but your arbitrary conception of what is "too much" actually doesn't cut it for me.

I'm not arguing that my definition is the correct one, I'm arguing that we can and have drawn lines before and are capable of doing it again.

Neither can I, but it's easier for me to accept a billionaire doing something that's at least really new and different.

I'm not a fan of Elon Musk, but I feel much less negative about his ventures than about Bezos, simply because they are adding to the world of what is possible. Bezos' rockets seem like a "me too" thing. People often say expensive things are "status symbols". It appears that Musk really wants to make science fiction real, independently of what anyone else does, and I suspect Bezos of actually being obsessed with relative status. Who knows if that's fair, but that's how it looks.