We seem to have some people these days who have got rich through being ruthless and think 'fuck everyone else'. That attitude is toxic.
Many of them are and were like that, especially in their beginnings. There is that saying: "Don't ask me how I made my first million!". With inflation and what super rich means nowadays, I think that should be updated to "Don't ask me how I made my first billion!". Once they make a name for themselves, some of them (not all), think they can pay back society for their toxicity through charity acts they fund.
As for Musk, his vision does indeed conflict with ethics since he would rather save some of the human kind in face of a potential extinction event, instead of focusing on a way to save all. But maybe others will focus on saving all (unlikely they will get the same attention, in my opinion, since enough of the super rich feel claustrophobic on this planet already).
Being able to live well for your whole life is not as common as it should be. With housing prices rocketing young people have to spend all their income on it. Those who could buy when it was much cheaper will do okay. There generally is enough wealth in the world, but it is not well distributed.
That's true, and I agree. Renting is an option. I see some people prefer it due to its flexibility and the possibility to live a simple life unattached to a place. But at some point, rent or the prospect of constantly moving may become a burden.
Of course Bill Gates tries to do good things and then some people suspect he has ulterior motives. They may twist his words. I've seen a lot of crap talked about him.
Have you seen rental costs in London? People who need to work there can't afford to live there.
That seems to be the case in many touristic cities, particularly in Europe.