That’s a very broad generalization. Lots of people need to prove their prosperity with giant houses, and other people just want a house that has the room they need and isn’t hard to clean. There are people who need designer label clothes and gold chains and people who are very happy with thrift shop aloha shirts. I don’t think it’s hardwired in at all, it’s more of a personality quirk, like resistance to advertising or how spicy you like your food. Combination of genes, culture and habit.