Richness, over time, warps your perspective. You tend to only associate with other rich people, the non-rich people you meet are often employees or service people. The rich reinforce each others' belief that they're the smartest people around, otherwise they wouldn't be so rich, right?
Thinking gets inbred, fragile, cloistered. I've seen it happen to people of my own generation. You have to work at staying in the flow of humanity. Poor people do the opposite, dream of being separated from all that humanity. The trick, imho, is to strike a balance, if you can. And being well-off financially gives you the option. You don't have to choose to be cut off from humanity. I find I'm much happier if I'm more immersed in it, less separated. I think this is because it's reality. No matter how much money you have you still have just one body, and it ages at the same rate as all other bodies, and it does all the same things. Bill Gates used to say when he flew coach instead of first class, that he gets there at the same time. I admire that. Why? Because it's true!