This might be for requests for gas money or bus and airplane tickets to travel to visit the victim, medical expenses, education expenses etc.
There is usually the promise that the fictitious character will one day join the victim in the victim's country.
In some cases, online dating services are themselves engaged in misrepresentation, displaying profiles which have been fabricated, which use personal information from users who have not agreed to be depicted on the site social accounts, classified sites and even forums to groom new victims.
Upon finding victims, scammers lure them to more private means of communication, (such as providing an e-mail address) to allow for fraud to occur.
There is no free press or independent legislature to call Chinese leaders to account or challenge their public statements.