Many moons ago, I was involved in the technical side of volunteer work for domestic violence victims escaping abusive relationships with e.g. law enforcement (cops), who even fifteen years ago had sweeping powers to track and stalk their victims. Things like actual anonymous burner phones and the ability to e.g. create new email accounts without government identification were critical to the process of getting these people out safely, or alive, without fear of retaliation.
I can't even imagine how difficult this job must be nowadays, with bullshit like Flock spanning hundreds of police departments participating in their nationally-linked database. I have zero sources for what I'm about to say, but my instinct is that the political machines (expanding powers hidden behind "think of the children") behind how technology is evolving today has gotten people killed.