And yet we live in a world where even a basic surveillance camera, dashcam, or bodycam are often broken, missing, or turned off.
It's not always nefarious. The friction is just too high and people don't actually care about any of those things you listed as much as you might believe. If they did, we'd just as easily employ people performing audits on every interaction of every waking moment since the beginning of humanity. A nanny, if you will.
In the real world, simplicity wins. You can say it's irrational all you want. Nobody cares. Cost, reliability, and impedance are more important. No amount of engineering or economy of scale will overcome those things. Doing nothing is always an option and so this is all ultimately political.
What humanity has learned again and again is that trust is too important and intrinsic to leave it up to politics. All that will result in is brittle rules that are easily abused worse than the original problem they intended to solve. It's much easier to convince people to socialize accordingly and ignore or punish the people who refuse to comply.
Making sure that every decision in a flowchart leads somewhere is not necessarily valuable or even desirable to anyone.