> The overall point is that you need to fix the root cause, not the effects of the cause.

Part of the reason why women are less likely to become programmers and strartup founders is because of the lack of role models. Successful role models serve both to change ingrained cultural biases, as well as to inspire and encourage underrepresented groups to consider participation in new fields. There is no clear cause and effect, but rather a feedback loop (what we see affects our biases which then become even more entrenched). This is exactly the reasoning behind affirmative action, and why any fight against cultural biases should be at all levels.