The country is doing better, but many of the government's policies are comparably unsustainable. In theory you might be able to restrict all political decisions to a class who actually know how to work things out in a rational manner and run things properly, but I would not regard China as a good example of this.

Don't forget that some people in China are still controlling the country on the basis of their political beliefs, the majority of the country simply has no power and thus little incentive to be politically active.