So in China, and every country there are a few relevant players. Farmers, farm owners, politicians, and scientists.
Farmers (laborers) have to survive and most work wages so they arent accountable. Farm owners have to compete and if they dont they go out of business and someone will take their place so they're not really accountable. But its the law that makes the rules of the game and so it is the responsibility of the political class to avoid designing "tragedy of the commons" scenarios.
There are at least SOME good-willed politicians who dont want things like antibiotic-apocolypse. The problem is that they have a ton of scientists whispering different things in their ears so they dont know what issues are big threats and which are scientists trying to get funding into their own field of study. Its therefore also the responsibility of the scientific community to effectively communicate with the political class.
See? At least some people out there arent perfectly rational!