First, there are an awful lot of schools that offer semi-worthless MBA degrees as a profitable business. Much more so than in engineering or CS. Then, it's bec

First, there are an awful lot of schools that offer semi-worthless MBA degrees as a profitable business. Much more so than in engineering or CS. Then, it's because business expertise and talent is hard to verify. Programming or engineering ability is easy to prove, even at entry level. You can't prove you can manage a large group until you're already in charge of a large group. This means a company is taking a big risk on hiring MBAs versus CS grads, and needs to look for some clear, objective signals before going ahead. Finally, executives like hiring managers who went to the same school they did. I don't know exactly why this is the case -- reciprocity, maybe, or some notion of a shared vision of how to run a business.