That is the usual short-sighted thinking. Things progress and data will be used for everything, if there are no terror attacks, the focus goes elsewhere.
Also, everyone has something to hide, from IP to personal secrets.
I'm sure and I'm also sure something that is fine today 5 years down the line will change and cost you your job as the world gets more PC and retarded, OMG I typed retarded that's me screwed!!
I have a lot of secrets, mainly married woman, when Sharia law gets in I'm stoned literally, but I keep all my info secret, nothing links to me anyway, FB doesn't have real info, name date of birth / anything.
Worry about and work the problem when it happens, not enough time to worry and be paranoid about everything.