As much as I hate the guy, Kissinger made a great point in an interview with Eric Schmidt paraphrased:
'We have lived a fairly peaceful period in the last century with a stable world order, we should not assume that this is guaranteed to continue forever.'
We usually don't like to think in centuries or decades. But a democratic state today can become autocratic 50 years from now.
Equally, today caring about my privacy is just adding a lot of friction to me daily live. 50 years from now, I have no guarantee that myself or someone in my family becomes 'a person of interest' for my government.