I've just been going over everything they did and...I just don't understand. They sic nobodies on people for no real reason. They sic Heartless on people to create more Heartless, but there doesn't seem to be any need to do that: as far as we know there are still billions of Heartless in the world. They try to turn strong hearted people to their side to increase their numbers, but again, the Heartless and Nobodies are already so numerous that it seems unnecessary. One could say that they're just trying to press their advantages, but all that serves to accomplish is give the heroes of the light reason to destroy them. Is there anything I'm missing here, or are their actions really as foolish as they seem to be? Did they really have to do any of it?