Look at the real world NOW, 15 years after all the surveillance. You still can explode bombs and kill people middle in a european capital without any encryption at all. Is this the kind of surveillance you are afraid of?
If you want to hide something, there are infinitely many ways to do this. No surveillance can (or ever will) read the one time pad encrypted communication. So you have (and always will have) your freedom and capabilities to hide — what's your problem?
Arguments like "well then show me your bank account" are just plain stupid: I have no interest in sharing this information with my work colleagues, my neighbours or my friends just because it would have implications in some social aspects (it's not about security!). But his information is only sensitive in context of a personality. I'd neither have problem to show anything to a random stranger nor would I be interested myself in this information coming from a random stranger.
If somebody uses my information in an unethical way, it is not the problem of a surveillance, but that it's possible at all.
Exposing my personal data to a government during an investigation could also protect me by verifying my alibi. We have nothing to hide, right?
The comparison with free speech is ridiculous. Free speech is the opposite of hiding and doesn't imply breaking the law. Hiding implies playing by other rules, than commonly established. Free speech is important because eventually I might have something to say. But no one would ever agree that he or she will have something to hide eventually (without getting criminal).
So I'm still missing the point...
Say your bank account information was stolen and someone used it to blackmail you because as you said it would have, "implications in some social aspects".
Say the country you live in converted to a religion you are not part of or want to be any part of. Imagine if they had a record of your beliefs and used it as a handy tool in mass genocide.
Say someone working for the government or a start up was jealous of something you had, and used their access to take your information in order to discredit you.
Say you medical information was sold by a fitness start up that went bust and sold to insurance companies to bump your premium.