I have an aunt who has a nursing degree, burned down a barn with horses in it and attempted to kill two people (her mother and her sister) by injecting them with insulin. At some point in between all of that she drove a school bus and for some reason decided to slash herself up with razor and claim that she was assaulted.
We heard that she'd gotten a job as a nurse and we we wonder how that happened. My father-in-law was in the hospital (not where she worked) and she changed his IV bag when it ran out and started beeping.
A week later we read in the paper that she was raiding the medicine cabinet at the nursing home she worked at and found out she was also stealing ADHD medication from her grandson.
Turned out she failed to tick the box that asked if she'd ever committed a felony and the employer was too busy to run a background check on her SSN.
Dangerous people are out there.
That kind of behavior is a direct threat to life but I think tax evasion, corruption, rent-seeking, a lack of responsiveness to problems such as global warming, homelessness, and affordable housing and similar behaviors threaten our civilization and one thing we know is that when a civilization goes down the people left behind turn their back on everything that civilization stand for. (Ex. look what happened when the Christians took over Rome)
The main thing our civilization stands for is individualism and if you like the idea of being able to decide anything at all for yourself (or people 50-100 years) you should have been helping turn the ship around 20 years ago and it might be too late now. (Eg. Listening to people like Frederick Hayek is the real "road to serfdom")
An Iranian physicist living in the UK threatened to sue me under the UK libel laws because he thought I brought attention to him that might lead Iranian grad students to come around looking for job. Well, I was chewed up and spit out by that system and I was not going to be intimidated by that -- if you are sitting pretty on a tenured job on the back of young people in an unfair situation you deserve to hear the voices and see the faces of people who are harmed by your privilege. It is not such a big thing.
Somehow your domestic intelligence service, foreign intelligence services, organized criminals, rip-off artists and other people are going to steal your information and the more that information is pushed underground the more impunity that they are going to operate under.
(To paraphrase Heinlein: a transparent society is a going concern)