A South African farm might seem an unlikely place for the birthplace of an idea that could save millions. But Sarah Collins used her experience growing up under apartheid in South Africa to create Wonderbag, a revolutionary way of cooking food. She is proud to call herself a poverty activist, a woman transforming the world for women. She talks to Cynthia and John about her commitment to collaboration, keeping people rooted in your purpose and how much she’s learned from her so-called recruitment failures.