Imagine in 1943 if this tech had been available. No snitches would have been needed. Everything, from the lights to heat to water use to the DNA of the poop in the sewer could be monitored, exposing anyone hiding under the floor boards. Exposing 'criminals against the state' for using too much of this or that, controlling where you go, recognizing your face, locking you in, and delivering you to the camps, and all with only the manpower needed to keep the vehicles going and the systems up. Which would have freed so many more to go forth and fight for ....
Every technology has a dark side. What can be used for good, convenience, and to bring satisfaction can be used to torture, control, and enslave, not to mention kill...
Whether single targeted individuals or entire demographics or populations, and it seems we are all in the crosshairs.
AI could lead to unimagined prosperity or incredible horror, and the story would never get out because those who control the medium control the news.