Originally Posted by
Edge-
It can threaten the game at retail stores. Places like Walmart and Toys 'R Us like to have family friendly images, so should a game become "controversial" they may end up pulling it from shelves which can hurt sales. Target pulled GTA V from retail shelves in Australia because of such a "controversy", for example.
It's unlikely, but the sales lost from angry nerds refusing to buy censored games don't outweigh the risk of having a retailer pull copies of your game from store shelves.