Why stop at B schools? All universities, these days, are debtor’s prisons, and the PhDs are the tapeworms.
You are right. Many advanced degrees are simply cash cows for universities. Even worse, many undergrad degrees are simply cash cows. You come out of an undergrad education or with a graduate degree with a mountain of debt and no job. And you realize how much better undergrad and grad programs could be if they focused more on what business want and need.
There really does need to be a Congressional investigation of college collusion on pricing and admissions. And the incentives for price inflation need to be taken away. The whole university system is a racket.