Does the word men make you uncomfortable?
Tribal warfare is the special environmental pressure that drove humans to evolve intelligence, culture, and technology far beyond basic survival needs. Differences in IQ among populations can be traced back to the amount of organized warfare they faced and defeated. Japan had a violent tribal warfare past and it largely explains who they are.
The technologies developed for surviving tribal warfare are later put to civilian use, and that's what drives increasing prosperity. No war, or preparation for war, means little improvement in prosperity later. That's just how it works.
Due to biological differences, women's survival strategies are different than men's, however your premise that women leaders result in peace in prosperity is a fantasy. Women are just as cutthroat as men. They just hide it better.
You are ignoring the point, though. You need both sexes working in harmony for a successful society. The Northmen were about as manly as it gets, yet, they had no problem utilizing the talents of women for running things in their absence. They didn’t lock them up, keep them idle, and expend a lot of resources keeping them that way like is done in the Middle East.