I dont understand. Do you ask what happend when you deide to rank a class in a city where exist a guild of that class? Well is easy. If you wan to do leves whit marauder and gain gils. Dont do LL leves. There still two other citys leves remain for you. Is not enough? If you will be able to choose your reward the "spread of ppl in world" purpouse will banish for bad.