Problem with that mentality is that on a macro level, you only need a certain number of MBAs. Not everyone is cut out to be an MBA, and not every MBA is going to use that degree to the full extent. Not to mention this completely ignores brain wiring and interests/skills.

Women engineers are underrepresented in every part of the world, and the problem has to be fixed by helping the (mostly female) teachers and counsellors from the primary school level so they can talk about the subjects to girls. The less they know about the subject, the more they'll talk about what they know.