If this plan has been in place for decades, it's likelier that its purpose is containment of potential revolution, and brainwashing the public not to mind living in a total surveillance state that can't be stopped through any democratic means. It's probably so decentralized by now that nothing short of a Carrington event could get rid of it.
Man, this is really a hard stop for me. I can't ever bring myself to view an agency conducting mass surveillance as good, nor can I view the whistleblower that brought it to mainstream attention as evil.