Everything else is basically an experiment. Each district is doing it differently to find out what works the best and that will then be merged into what the country does. (The scientific process ... using data to inform policy)
I visited Guangzhou in 2018 and was expecting it to be crazy since it has "the worst levels of noise pollution in the world" https://www.theguardian.com/cities/2018/mar/08/where-world-n... but it was almost crazy how quiet the city was. After the report come out they went around the whole city putting in traffic lights and fixing up all the intersections. There is still traffic but it is now more organised than any Chinese city I have been to. I ask the locals about it and they love the cameras, the order and the reduction in noise pollution. They freely admit that without the cameras most of the other Chinese people would just not obey the road rules so they are glad that the cameras are there.
I image "social credit" will be similar. Lots of people here just don't pay bills because there is no credit history and there are no debt collectors (well not like in the west anyway). If you owe money to the wrong people then it is better to just disappear but for most companies, they have no power and they cannot do anything.