It is not that at all. However, when the costs of education get to a point where only the wealthy can attend higher education, and obtain post graduate degrees, you begin to form a two class system, instead of a multi class system. When there is only a two class system, those who have much, and those who don't, those who don't become disenchanted, and begin to grumble, and, eventually, create an uprising. I believe that you will such was the case with the ancient empires, as well as the middle age empires. You see it happening today in the middle east.