I can speak a little bit to this. I have a several (non CCP) contacts who are experienced in dealing with China.

China will frequently pay someone for a job that is entirely pointless just to say that they have low unemployment. I can give two examples that a friend of mine witnessed (both of which annoyed the hell out of him):

First, three men who were paid to move rocks, one moving them up a hill and across a road, one moving them down a hill and across a road, and one stopping traffic when one of those two crossed said road while moving said rocks. Just three men, two piles of rocks a hundred meters apart, and some wheel barrows, all holding up traffic between my bud's apartment and his place of work for the entire two years he was contracted there.

Second, a person paid to stop people from taking their trash out outside of allowed hours. In this particular area (maybe all of the mainland), a rule was put in place that peons could only take their trash out while an attendant was present at the trash location, "to ensure that recyclables and compostables were not mixed in with landfill trash". This attendant worked basically whenever they wanted, shifting hours around different weeks. Naturally, people ignored the rule and would take their trash out when there was no attendant. So, the govt hired people to guard the trash location to stop people from taking out their trash (but not to sort it at convenient hours).

So, all this is to agree with comments that China will absolutely send in hoards of "unimportant" people to clean these buildings up, with utter disregard for safety or reason. In their eyes, they have created employment.