It does make you an "insider" in a way. I would say you used a moral compass to justify your actions (which is hard to argue against). It would suck for both parties, but everything lost (by your friends, or the tribe) can be gained back in various ways. If it kept your friends playing the game, and possibly started a small rivalry; I would say you are playing the game, and experiencing it just as some would like to see it played. If you want to avoid a conflict like this in the future; I would suggest using conversation to try to negotiate between the parties to find common ground (just my opinion though).