It should be made clear that the people to whom Zappa refers (knowingly or not) are MBAs who do a bad job at their eventual jobs. This notion of an unfeeling horror at the helm of a company of soul-less androids wrecking everything they touch for the sake of pure profit is nonsense. Corporations are simply groups of people gathered for a goal, one important factor of which is financial.
Go to any business school of ANY repute, and you will find instructors who give TOOLS to future business workers. Just like programmers gave managers the tool called "spreadsheet", business schools give tools like finance, accounting, operations, and so on. A very real component of this education is a notion of what is right, not just what is expedient or lucrative. In fact, every class I've ever seen has a powerful component of quality built in, along with philosophy and discussion about why quality is worth doing, how much, and when.
If some students fail to absorb this message, or fail to make use of it in the workplace, that is hardly a mark against the education, especially since so many of them do.