There is an impressive list of McKinsey alumni who are changing the world with extraordinary passion and focus, including Joint US-China Collaboration on Clean Energy (JUCCCE) chair, Peggy Liu. The non-profit, which she created is at the forefront of sustainability in China. It was a random conversation over peanuts and a Diet Coke that brought me to McKinsey. My dad was sitting next to someone from McKinsey on a flight home and told me it sounded like a great place to work.