The only 'real' threat Xi would face is if he imperils the finances that the SGRs wish to pass on to their children. There are already rumblings that Xi's anti-corruption campaign is doing just that.
Xi is not the only power in China, just the current leader of the pack.
WWG1WGA
Garde la Foi, mes amis! Nous nous sommes les sauveurs de la République! Maintenant et Toujours!
(Keep the Faith, my friends! We are the saviors of the Republic! Now and Forever!)
LonePalm, le Républicain du verre cassé (The Broken Glass Republican)
Considering the traditional culture norms of China regarding family members I can see why that would be a huge issue for the SGRs regarding their children. Money and acquiring monetary ‘stuff’ is big their now for their kids - constantly trying to outdo their peers and very much 'a social status indicator' which they're far more wrapped up in then even here in the US. So their sense of achievement rests much in material wealth and 'qualifiers' in pretty much all areas of their life.