The government is corrupt enough that they might as well could trigger a revolution themselves someday. Interference from us would hardly matter.

If anything, interference in Chinese domestic matters would solidify the ruling oligarchy's dominance.

Just a few to note: http://en.wikipedia.org/wiki/Chinese_Revolution

Anyone starting a revolution now would technically be labelled as a counter-revolutionary (this is the terminology they use at least).

>These are the Chinese we're talking about..

Is this supposed to mean that the Chinese are too tame and subservient?

They already had a huge communist revolution -- and two more revolutions in the last 120 years (the Boxer and the Hsin-hai Revolution). Even the last 2-3 decades, they had massive strikes and struggles, and the Tien-An Men square thing.