I was at an invite-only dinner in the south of France, at a chateau overlooking the Mediterranean during the Cannes Lions Advertising Festival. The lavish al fresco meal was cohosted by talent house WME and ad agency Droga5 , and it featured short speeches from notable media figures: 21st Century Fox CEO James Murdoch, model Chrissy Teigen, and HBO chief executive Richard Plepler, among others.