You know, when the MBA degree started, it was intended to teach business skills to experienced engineers as they were promoted into management roles. The idea of a "pure manager" MBA who hasn't ever actually done the "real work" his organization does to make money is a relatively recent one. And that is the problem with MBAs. Similarly, in many companies, it is possible to be a project manager having never done any of the projects you are managing. This usually ends in tears because practitioners never bother to mention "obvious" things so the PMs lose track of cross-functional dependencies.