> projections of what the world might look like when this happens
I've done this a few times. A world with 0 privacy would definitely be safe (given benign governance), but also would likely be pretty boring. Crime would become a non-issue as everything about everyone being easily known/knowable by everyone else means the root of any given crime, some desire/need, could be brought to the fore and resolved before it became an actual issue. But also there would no longer be any kind of surprise in anything; everything and everyone would essentially become dull and grey, and humanity isn't about that kind of life experience at all.
> given benign governance
quite unrealistic imo, thus we (maybe and hopefully) needn't worry about the bland minority report future you're hypothesizing :)
In such a world, the government could never be overthrown.
All governments go bad eventually, so the ability to overthrow is critical to prosperity.
Government's are either overthrown internally (revolt, uprising) or by external parties (invasion). A worldwide everyone-knows-everything would prevent both.