I don't think the entire universe outside of Trump and his supporters has any way of understanding how many Trump supporters thought, and maybe still do think a little, that we're on the verge of losing the United States of America forever. And that is a big deal.
So the greatest source of happiness is other people- and what does money do? It isolates us from other people. It enables us to build walls, literal and figurative, around ourselves. We move from a teeming college dorm to an apartment to a house, and if we're really wealthy, to an estate. We think we're moving up, but really we're walling off ourselves.