Why? Would the people who succeed have been as successful without being supported by their partner? (plus definitely it’s an engagement where people go into knowing what to expect, it’s a partnership where you decide you’re willing to pool your interests and work together for the longer term).
Taking Gates as an example, isn’t Melinda credited for pushing him out and focus on other things? Had he stayed around, would MSFT have been able to do such a turnaround? (Isn’t half their wealth gained post MSFT, but he might still have benefit largely from stock growth for a while).
(not going to comment on the claim that women are predisposed to be less successful, esp. when you still see everyday sexism everywhere, as the thread demonstrates)