The reasons that those things were acceptable to American policy makers, and before them British, French, Spanish, and so on ad infinitum, is due to the axioms of the human condition... power corrupts and all that.
There is no evidence that in the last 50 years the world has actually 'changed' those axioms, except for the Chinese.
There is no evidence that other countries aren't doing exactly the same thing (making decisions based on their own perceived self interests) as the Chinese.
There is no evidence that it is required or even possible for a country to become a major player by getting the rest of the world to like them.
China gets the attention because of its size, so when they embrace imperialism and condone counterfeiting, torture, repression, etc. it has a noticable effect in the rest of the world.
That would seem to reinforce the notion that when they move away from the old regime, that this too will also have an impact.
Unless someone can explain exactly what it is about being a Chinese person that makes them exempt from the same things that drive the rest of the human race?