“Nothing to Hide” is more akin to a fundamental truth than a deviancy.

If you wish to hide something, why have you leaked it in the first place?

Why not ask the other question? Why are you trying to hide public information to begin with? Why are you introducing encryption on top of an underlying public interface.

This is intentionally different from are there things one would generally not be to be widely accessible or generally public.

There is nothing to hide if it is already public, because it is already public, you can't hide it even if you want to, you're only making it more difficult for a general member of the public to access that data. Even if you consider that "hiding", the source is still public.