At what point did I say that was normal or acceptable? I don't think you'll find I did.

Not everyone expects that. Yufa's wife clearly doesn't as she is the main breadwinner. I also have friends in China who are bow happily married and didn't have to buy a house or a car in order to become so. They are married because they met and fell in love with their partners and they treated them.with respect... They didn't view the whole thing from a transactional point of view as you clearly do and that is why they are in happy, successful and satisfying relationships and you are making enquiries about the price and services offered of Vietnamese prostitutes.