"Business" is far different from the realities of mechanical engineering, industrial engineering, etc -- which go from very specific courses in education to certain work environments.
For example, take children of age ~7. Boys love playing with cars; girls do like them a bit too, but it's pretty clear they prefer simulating social interactions, specially dolls talking. Should we address this imbalance too? That would be like making a toy which is a car with a doll strapped on it's back and forbidding all other toys -- we'll achieve equality, but won't it be artificial? Will boys and girls actually be happier with their toys?
I'm not claiming all unbalance in STEM comes from preference, I'm claiming some may come, and it's important to recognize that to effectively address the situation.
