Moral Tribes, by Joshua Greene [0] has a more in-depth analysis of honor and other cultural attributes. You can find large geographical differences in the importance of honor within the US.
Cooperation also varies greatly around the world. Scores in a cooperation game (where you both win by cooperating) vary by an order of magnitude between countries. They are somewhat related, in that getting hosed by the other player in a cooperation game is merely annoying for a non-honor-oriented person, but humiliating for an honor-oriented person, so they're more likely to defect immediately. The article doesn't mention it, but that seems like the obvious mechanism for how thar causes poverty.
Cooperation also varies greatly around the world. Scores in a cooperation game (where you both win by cooperating) vary by an order of magnitude between countries. They are somewhat related, in that getting hosed by the other player in a cooperation game is merely annoying for a non-honor-oriented person, but humiliating for an honor-oriented person, so they're more likely to defect immediately. The article doesn't mention it, but that seems like the obvious mechanism for how thar causes poverty.
[0] http://www.joshua-greene.net/moral-tribes