My teacher had our class re-enact a scenario very much like this one in class. We discussed the principles that would govern our imagined society before we picked our fate out of a hat
This seems like a very telling activity because it would really show not just the people around you but also yourself if your morals are skewed when you have something to gain versus when you have nothing to gain. I think most people would like to think they are morally just and not heavily biased to benefit themselves only but I think many times thats not true, it's just human nature to lookout for some ones family/ self before others. But this activity could show just how skewed you might be.