This is something i often hear from friends of mine when talking about privacy in general...
"But i have nothing to hide"
"Only criminals have something to hide"
"I don't care if google know what i search, how i think, what i like, because their services are good and free and (again) i hace to nothing to hide"
They fail to grasp the true danger behind their own acceptance.
It's ignorance at it'a finest.
Socially accepted ignorance