Because he was a man entering the traditionally female field of elementary school teaching, edward was promoted to school principal over his female counterparts who had more experience. this situation illustratesthe glass ceiling effect.

I believe the answer is: the glass escalator effect.
 the glass escalator effect the differences in Organizational rise between male and female workers in a certain organization, particularly in female-dominated field.According to statistic, men are about 25% more likely to get promoted even in female dominated jobs.

It allowed for things to be produced much more quickly and efficiently