PepsiCo has much invested in being a “good” corporate citizen, and Nooyi has much to do with that. What distinguishes PepsiCo, however, is that it doesn’t stop at the “easy stuff” (such as purchasing renewable energy credits, of which the company already buys more than anyone else). Rather, PepsiCo really tries to change. It reformulated products to become healthier (Baked Lays) and encouraged less consumption of some of them (the 100-calorie snack packs) and refurbished its chip plants to become net zero users of energy (imagine it: SunChips made only from solar power? PepsiCo’s marketing department already is).