I think if you study social anthropology, you will find poverty in some tribes - not money, but often there are certain members of the tribe who do not work as much or provide as much. The Ik tribe somewhere in Africa (can't recall, many years since I read the book) was one such tribe that had no communal feelings or desire to provide for their fellow tribe members. If the head of a family died, the widow often starved to death, as did the children, and no one would step in and care for them. If a fellow tribe member was hurt, they would actually laugh. The writer, Colin Turnbull, stated that he had never seen any other human beings without any redeeming qualities as this tribe.
So in a sense that would be poverty. I think famine eventually did them in.