Mike Lesk is interesting on this. He said to me that if you assume people are idiots they learn to behave to your expectations and if you treat them with the respect they deserve they grow.

This is well-known in the fields of management and teaching.
There's no 'just' in women's work. As the Chinese maoist poster said: "women hold up half the sky"

I never said women, I said secretaries.  Deliberately so.