The question of nature versus nurture is an important one, but also an incredibly delicate one.
How much of the disparities we see in society are fueled by a lack of good education, social influences and role models, and how much are due to natural ability? Given that people in advanced countries spend multiple decades of their life in school, this is an important question.
But it's also a very fraught one — discussions about the issue are frequently hijacked by people pushing racist or sexist theories, and polite society's reaction, understandably, is often to make such discussions taboo.