One of the things people miss re wealth gap is where the money is. They think these billionaires are swimming in gold coins like Scrooge McDuck but the vast, vast majority of their wealth is tied to stock market going up a ton (see table). Musk, Page, it's 100%. Most is 95% or more. It's like being house rich, cash poor. This is why stock donations are arguably the best, quickest bang for buck in combatting gap, and it helps financial literacy to boot.