Former Google CEO Eric Schmidt once said, "If you have something that you don't want anyone to know, maybe you shouldn't be doing it in the first place." It was a preposterous statement assuming that the only value of privacy is to protect one's self when they do something morally, ethically or legally wrong. It was remarkably incorrect and offensive and everyone (rightly) lambasted him for it.
Your statement is eerily similar. I'm not commenting on what Google has done here. But to say that they wouldn't care about being video taped if they were not doing something illegal does not make complete sense.