115. Sumner Redstone
Redstone remains the controlling shareholder of the beleaguered media giant Viacom and CBS, despite a 2016 marred by boardroom and courtroom dramas. Viacom’s stock is trading at its lowest since 2010 amid shrinking TV viewership and declining ad revenues. His father founded the cinema chain now known as National Amusements in 1936; Redstone took over in 1954. He acquired control of Viacom in 1987 and spun off CBS in 2006. While a student at Harvard during World War II, Redstone was selected by a Japanese history professor to help break Japan’s military and diplomatic codes. He later lectured at Harvard Law School, Brandeis and Boston University School of Law, where he taught one of the first entertainment law courses.