Another way to frame it is to postulate, if gender roles tend to persist and even increase along with wealth, why are our political and economic systems configured to be so "masculine."

For example, the US has a very low proportion of elected representatives who are women, in relation to other developed countries.

If you take this article at face value, the involvement statistic could be an indicator of how we conduct our political affairs, more than an indicator of women's empowerment.