It's powerful enough that some scientists believe it is part of evolutionary psychology. To put it bluntly, social status can get you laid. So until that changes, people are going to keep striving to be richer/flashier/"better" than their neighbors.
I've been around people buying houses for much of my adult life. I'm always amazed how many people take great pains to make the latter choice: the biggest house in the neighborhood. Or, if they are of a mechanical disposition, they will go into insane amounts of debt to own the nicest car(s) possible while living in an unsafe home in poor repair.
That's also part of what caused the real estate bubble -- given the opportunity, people will (on the whole) choose bigger and flashier regardless of their actual ability to afford it.
I didn't invent it, I don't particularly like it, but I sure have observed it. Sigh.