It's pretty much everyone who wants more stuff, when they can afford it. But the kind of stuff different people want varies a ton cultural and individually. But

It's pretty much everyone who wants more stuff, when they can afford it. But the kind of stuff different people want varies a ton cultural and individually. But no, it's not that "regular working people" eschew possessions while the rich consume. "Minimalism" and "FIRE" and "#vanlife" type things are all distinctly wealthy phenomena. It's people who can bail out of that lifestyle into a life of bounty if they decide to. Working class people may have fewer possessions (though this isn't even necessarily true IME), but that doesn't mean they don't want more stuff. Every "regular working person" I know is trying to save up money for stuff they really want but can't yet afford. The only people I know who talk about consumerism and people having too much stuff are those who can already afford anything they want.