In any firm, Peter Drucker once wrote, the CEO is the most important link between the inside of the organization and the outside—society, the economy, the media, public opinion. How do some of the world's top corporate leaders balance the "inside" demands of creating a competitive and rewarding company with their "outside" responsibilities? How can businesses best help promote greater, and shared, prosperity? Glean insights from leaders of some of the world's most cutting-edge companies.