Are you sure about that? Your wording sounds a little disparaging of her achievements. According to her wikipedia entry she was actually discouraged by her family to pursue a scientific career.
"Like her brother, Joan was an inquisitive child, and she exhibited an interest in understanding the natural world from an early age. However, her mother and grandmother both dissuaded her from pursuing science, since they believed that women's brains were not physically capable of understanding complex scientific concepts in the way that men's brains could. Despite this, her brother Richard always encouraged her to be curious about the universe. It was he who originally introduced young Joan to auroras when, one night, he coaxed her out of bed to witness the northern lights flickering above an empty golf course near their home. Later, Feynman would find comfort in an astronomy book given to her by her brother. She became convinced that she could, in fact, study science, when she came across a graph based on research by noted astronomer Cecilia Payne-Gaposchkin."
My belief is that there is a huge amount of human potential left on the table because young people don't have access to good mentors.