Power 50: Tim Cook

Courtesy of Apple

Since coming out publicly in 2014, the Apple CEO has vocally supported diversity, most recently donating iPads and Macs in 29 states as part of a $100 million commitment to improve technology in public schools with minority students. Once intensely private, Cook appeared last September on The Late Show With Stephen Colbert to explain why he decided to discuss his personal life: "It became so clear to me that kids were getting basically discriminated against, kids were even being disclaimed by their own parents, and that I needed to do something." It wasn't product launches, but rather Apple's standoff with the FBI that has been the biggest risk of Cook's tenure. He decided the company wouldn't comply with a federal court order to help unlock an iPhone used by one of the San Bernardino terrorists, arguing that doing so could set a "dangerous precedent that threatens everyone's civil liberties."