If find it downright disgusting that you imply caring for privacy is in any way related to pursuing criminal activity. I seriously hope you aren't attempting the "if you have nothing to hide" rhetoric. That fallacy has been dismantled into oblivion, and everyone who uses it should be laughed out of the building, never to be taken serious again.
Let me present my point either way: I simply do not want anyone, be it corporation or government, to have aggregated records of my habits, behavior and interests, because I find this to be discomforting and highly dangerous. Information is a powerful weapon in the wrong hands, and nothing guarantees that these data aggregations were, are or will be safe. I do not care about it being published - I care about it the fact that it exists in the first place.
I do not even know how this is an issue of who cares. Apparently, many people care, and privacy is a fundamental (constitutionally granted) right in many western countries, at least on paper. Just because you don't think it matters doesn't mean it isn't an issue for more than enough people.