Mainland China has no independent juridical system. Only reason to establish business there is if your business does something in China and you have to be there. You never use it as financial or business center for the operations in elsewhere.
The success of Hong Kong and Singapore is based on good legal framework. They are ranked among the best judicial systems in Asia. Businesses feels safe run business from there. Abu Dhabi financial center decided to emulate them. They created fully independent common law framework to adjudicate civil and commercial disputes.
It's possible that China decides to get rid of the law, but it will eventually bite them back financially.