Even ignoring the extremely explicit Robin Hood example that's already been pointed out, there's a hell of a lot of fiction centered around going to the lair of

Even ignoring the extremely explicit Robin Hood example that's already been pointed out, there's a hell of a lot of fiction centered around going to the lair of a dragon that does nothing but hoard gold, and killing it. Possibly you missed the subtext when reading those stories, but the gist of it is that society is totally fine with not caring about an extremely rich person losing a tiny fraction of their wealth.