> How do we know that the ruling/governing class is not abusing these monitoring systems and exempting themselves from monitoring?

It's not even just about the current people in charge or with access. Who's next? The "trust us" approach doesn't work when trust has already been broken with the people, or in a scenario where the data will change hands to an unknown future administration.

The best way to win my trust is to not even want the data in the first place.