Hmm, while I agree that no person is more intelligent than another just because of their status and that people who do their job often know better than their manager, the reality is that wealthy people are often better educated, making them the smartest. We just, as you allude to, have a privatization of means of production, but also of education. I would say the highest collection of knowledge, and thus smartness, can currently be found with high earning white collar job. Like lawyers or doctors.