I actually love ivar and Marco.
I don't think it's fair to say they're greedy... I mean ivar was all for sharing at first until he actually found himself in that situation. I bet most people in the camp would have don't the same (except a few like Jack, the third guy with them who like hunting).
I mean, the girls did the exact same, most people would having said that they don't really deserve the money as they have enough but I guess they found it soooo-