Sad to say, I do not have a favorable opinion of the Chinese insofar as ethics is concerned. Money is the god that is worshiped here. Anything goes. Contaminated milk, medicine, toothpaste and what have you...ethics be damned. Anything for some extra money in ones' pockets. Whether you are a government official or a private entrepreneur does not matter.
It is fine & dandy that those who get caught are punished (severely, by world standards: some are executed). And Chinese history has shown that breaking the law comes with harsh punishment (if caught, that is). But this has not seemed to deter those who are determined to make that extra buck, no matter the consequences.
Doing business here, or the mere simple act of shopping in a local market can be dicey. For those new to these shores, getting cheated or being charged exorbitantly is not uncommon. Hence my aversion to bargain shopping at places like Silk Street or Hong Qiao, where foreigners are seen by the vendors as prime bait carrying wallets full of cash, ripe for the picking.
This aspect darkens the glory & achievements of the Chinese civilization. Along with civilized social behavior, & proper traffic etiquette, the Chinese need to catch up with the rest of the developed world in realizing what ethical behavior is.
Otherwise, China will remain, essentially, just one big cowboy town with a heck of a lot of economic clout. A scary thought indeed.