"They would never do that because people would lose trust in them and their profits would drop!" "I know a guy that works there, and he says they take privacy

"They would never do that because people would lose trust in them and their profits would drop!" "I know a guy that works there, and he says they take privacy very seriously!" "Facebook is too big to make such a stupid decision like looking into your personal communications!" ^ All of these are arguments that I've heard here on HN. I can't even imagine what people on non-tech oriented sites say.