From corporate whistleblowers to Army refuseniks, a new book, “Beautiful Souls: Saying No, Breaking Ranks, and Heeding the Voice of Conscience in Dark Times,” explores what compels ordinary people to defy the sway of authority and convention for the greater good. “I feel like we have two very different discourses about whistleblowers in this country,” says the book’s author, Eyal Press. “On the one hand, when you see them cast in Hollywood movies, they’re invariably heroes, played by leading actors and actresses, and everybody salutes them… On the other hand, when we have whistleblowers actually speaking up in real time, the response is very different.”