Yes, there is a difference between giving all your information by your own free will and the state spying on everything you do.

On the other hand how many knows how much Facebook and Google collects about you and where that information ends up some time later? There was a lot of scifi about the information society and how that could derail in the future, where machines decides if you might commit a crime in the future and take preventative meassures. We are not far away from it now, just takes a few small jumps in the imagination to end up there :-)

> There was a lot of scifi about the information society

More importantly, there is a lot of literature about totalitarianism.