Let us assume a person cannot change society, they simply do not have the leverage, even if they are a billionaire or most politicians. This is a systems problem, requiring enormous investment of time and resources to change trajectories of. Therefore, the choices available are to continue to live in a low trust society, or move to a high trust society and minimize your exposure to low trust society impact on your life. It's unfortunate. I would very much like to be wrong, please correct me if I am mistaken.
The propagandised idea that living in China means living under an oppressive communist regime, runs counter to the countries wild success at pretty much everything it does.
I cannot speak to China, but my recent personal experience is that Japan is high trust throughout Tokyo, Kyoto, and Osaka. Would love to hear about the trust situation in China from anywhere who has recent ground truth.