It seems farfetched..
It seems all like “YOU can do it w the pregnancy”
You bring out the fact that “having more women on the board” yields bigger ROIC, but, that data has bias:
Big companies/companies that have already achieved success have on average higher ROIC, thus, it happens that they may have more women on the board.
Having women on the board is not the causation of higher returns.
If on average VCs prefer men, then a female CEO/CFO/CTO whatever, has to be so much better than the average male CEO (i.e. so much better than the average man or woman at her job).