I once got banned from a Star Wars roleplay for capitalism. The roleplay was set during the clone wars. Rather then joining a side I setup a company that sold ships to the Republic and droids to the separatist. As I was the only one doing this I was soon able to amass something like 3/4s of the server's wealth and could easily take on both the Republic or the CIS if they threatened me. This soon lead to players constantly complaining about this to the mods ooc until they banned me.