And unlike the Warsaw Pact leaders, who got rich from bribes and other forms of corruption, the Chinese elders get rich by running profitable corporations
Where to even start with this one... maybe do a little reading on levels of corruption in China? Or question the basic premise that "running a profitable corporation" is somehow exclusive of/distinct from "bribes and other corruption" in the context of a state-capitalist system run by an entrenched single-party authoritarian dictatorship.
We truly "bombed them back into the Stone Age," yet once we finally left, in one generation they became the fastest-growing economy in the region.
Not seeing where that "yet" is coming from: having your economy systematically degraded and shrunken by outside powers is a sure-fire way to create high growth - the process of simply rebuilding what you used to have from the diminished baseline, would show up as "high growth." Similar to how bringing up China up from abject poverty to some basic level of industrialization shows up as a huge growth rate. And so not seeing any relevance to any particular politico-economic philosophy - those statistics require nothing deeper than an empoverished starting point, and a political willingness to import foreign technology and capital.