Reminds me of Airbnb and Uber review systems in some way. And those systems always keep me on my best behavior. If the government does not abuse the social credit system for petty things, it could become a force for the good.
Another sort of weird system came about because restaurants always lied on their tax returns, so now there are lottery tickets built into receipts: http://engineerinshenzhen.com/chinas-receipt-lottery/