Well, if peoples' reason is perfect, than it is a superior way of making decisions. I'd certainly like it to be the case that we could do that. However, one t

Well, if peoples' reason is perfect, than it is a superior way of making decisions. I'd certainly like it to be the case that we could do that. However, one thing we might take away from your claim that "wired to thing about ourselves and our close tribe before anything else" is this: If people are motivated to come up with an incorrect decision, then reason can often give people a mistaken sense that they are being ration, when in fact they are using a rather large set of tools to get their preferred answer.