The more importance gender gap to talk about with regards to success in life is the variance gap rather than the success gap. Man generally fail a lot more but also succeed way more. The vast majority of prisoners and homeless people are male but also so are most CEO's. There probably is a pretty strong variance gap in the population.
This is because men are less risk-averse than women. Even within the same career paths, men are likelier to engage in more aggressive risk-seeking behavior than women. This risk-seeking behavior generates divergent outcomes. A great example of this is the academic publication gap; male researchers publish more frequently and in better journals than female researchers because novel identification or experimental methods (which are inherently riskier) are more attractive to peer reviewers. .