I'm not saying that the economy or markets are everything; however, if you don't have dissidents you don't as much friction. If China wants to move your mother's grave for a factory, there's not a lot you can do. Whereas in democracies you can try to draw it out with legal action, etc.
That’s not true at all. China is known for its “nail houses” for example.
https://www.theguardian.com/cities/gallery/2014/apr/15/china...
The phenomenon of "nail houses" testifies against the notion that the Chinese government will expropriate whatever land it wants, although nail houses aren't graves. Graves are less of a concern, because the dead by law must be buried in public cemeteries: isolated rural burials are uncommon.