What kind of world?
When you hypothesize a world where AI uses cameras everywhere to know everything they can about everybody,
you haven't characterized that world at all.
First, IS IT REALLY EVERYBODY? (But let's assume for now, it's really everybody).
The question that will characterize the kind of world, is what is done with that information.
You can choose to use it to oppress and repress people; or you could use it to help them. If you detect a person overly drunk, you can send somebody fetch her, and either send her to the police station or to her home. Here you can ask what kind of world you would live more comfortably in? But it has nothing to do with cameras AI, and databases.
If the AI detects that some person is becoming stressed and loses her health, you can use that information to fire her, (bad health leads to bad productivity right?), to forbid her to get insurance, etc, or you can use that information to give her some holidays and schedule a consultation with health services. Here you can ask what kind of world you would live more comfortably in? But it has nothing to do with cameras AI, and databases.
And if the AI detects that some crime is being committed or about to be, you can send the police after or before the damage is done to the victim, and you can put the criminal in jail or send back to his country of origin, or leave him on the streets to try again another crime. Here you can ask what kind of world you would live more comfortably in? But it has nothing to do with cameras AI, and databases.