Let me say this, if you're from Hong Kong, they KNOW that you'll take the job, because you're desperate for anything. They will take advantage of this as much as they can. A bit racist, don't you think?
I'm quiet confused by this statement.
Are you saying its racist that they pay foreigners the same as locals?
And that it wouldn't be if they paid you more based on your race?
If Hong Kongers came to wherever you're from, and received an "Ex-pat package" would you be content?
I can sympathise with the rest of your concerns however and agree with them.