I think it would be interesting to see how many of these people are working outside their college degree. I bet many of these people are running businesses that have little or nothing to do with their college degree, especially the art & history majors.
I only would like to know how many of the 1% are married to each other. Could it be some are the spouses who majored in humanities?
Also, what percentage of the non-inherited rich have a college degree? Not Bill Gates, Steve Jobs, Larry Ellison, Paul Allen, Carl Icahn, David Geffen, most celebrities like Oprah Winfrey, Tiger Woods, etc. While there is a correlation between college and income that does not imply causation. Brains and/or talent is the actual the causation, and colleges do not hand those out.
It should also be pointed out that the very easiest and most certain method of joining the 1% is to marry into it. As John Kerry proved, good looks and personality are not a requirement.