Contrary to what many think, the "upper class" is not always the richest of the rich, and they are not necessarily conservative.
For example, Bill Gates, despite being one of the richest men on the planet, does not really fit in with the traditional American upper crust. As far as politics, the Boston Brahmins, who are the epitome of "upper class," were liberal.
"Jackie Onassis was upper class but poor." - Paul Johnson, in his book A History of the American People