Funny you should mention this. Just this morning I was reading a report in the paper about a new book "The Inner Level." It's about examining the psychological toll of the wealth gap. More equal societies reduce stress, restore sanity and improve everyone's well being.
I see 2 problems: firstly many of these people are out of touch with what is going on in the world and their contributions to the problems. My late partner's son is a doctor and has 3 kids and, of course, lots of money. She once told him life would be really, really hard for his kids and he agreed but also said he will take care of it. This meant opening a retirement account and funding college. No idea of anything but money fixes. The 2nd big problem is the pro growth economic strategy. Growth costs and many are being put in a position they cannot pay for some of those costs. We have a scofflaw ballot pusher who once got a flat $30 car tab rate on the ballot and won. The tabs have gone up, as it has created real problems for the motor vehicle infrastructure and the idiot is pushing this again. People will vote for it as they don't have the money for more expensive licenses. Along those same lines and one most of us refuse to see is that we actively import poverty. Many people coming here are coming for economic reasons. They can't make it in their own countries so they try here. This actually widens the wealth gap.

Of course, he is right. I had my epiphany when I went to visit Rhode Island and saw the mansions , one after the other lines up by the ocean; The Vanderbilts ( they have 2,) the Kennedys, the Carnegys, all the other billionaires who have erected these opulent houses and gardens on the back of the workers they imported from the rest of the world. Conspicuous consumption. Wealth without work .