In fact, the lesson is muted.
So China has a few token executions? Life is relatively cheap there and the culture is very opportunistic.
It won't do a thing to clean-up their society, and it saves the government actually DOING anything about the problem.
Of course, there is TALK about food safety, but give it a year of so, there'll be another scandal.
Then there's pollution - China has one hell of a problem there because nobody cares.