That sentiment seems to fail the test with reality, because you have people following the rules and behaving perfectly normally (like the subject in this story) who end up getting scrutinized anyway. That's a recipe for increasing anti-social behavior. After all, why bother following the rules if it doesn't keep me out of trouble?
Because instead of merely being scrutinized, you get sent to jail.
Because they're the exception, not the norm. These systems generally do what they're supposed to do, at least if implemented correctly. The key isn't efficacy; you need to be emotionally prepared to oppose privacy violations even if they're doing exactly what they advertise.
Because it's not about helping you, it's about control. These people are literal anti-humanists, they just want to control all aspects of society. If people are suffering from the consequences of a massive publicly mandated surveillance state, well that's the price of progress if you listen to the anti-humanists.
It’s a fine line. Periodic demonstrations of arbitrary state power over your personal life can enhance the coercive effect. TSA checkpoints serve this purpose.