The Buddhists wouldn't disagree, they would agree and state that it is an axiom of their philosophy. The whole point of Buddhism is that people want more than they need and that it offers a way out.
Yes, I can easily imagine a tribesman coveting what his tribemates have. As for how exactly he acquired those things... it probably did not involve "affording" anything, because there was no currency. But I'm sure there were fights, theft, etc as well as plenty of labor invested in manufacturing more trinkets. Necklaces were not simply found on the ground; you would have needed to come up with a needle, thread, possibly a drill... all much harder to procure in the days before Home Depot!
It is not an inherent human quality. Our ancestors in the African Savannah weren't going out of their way to acquire material goods. They were lean.