I think this one aspect of what the Chinese are trying to build with their social credit system. Not to say this is a good idea, I think there is no way to implement something like this fairly, but I know they give social score for neighborhood improvements under some narrowly defined criteria.
Given extensive enough monitoring and ML wouldn't it be possible to monitor the emotions of the citizens in a neighborhood and reward people who positively impact their neighbors?
No, because you get what you measure. If there are concrete rewards attached, people will immediately try to game the system. You can ameliorate this somewhat by being careful what you measure, but you'll still wind up with a metrics-driven tick-the-boxes response rather than an organic result driven by individual human motivations.
Given extensive enough monitoring and ML wouldn't it be possible to monitor the emotions of the citizens in a neighborhood and reward people who positively impact their neighbors?