Besides Old Money, the fact that she is Asian really helps her to fit in with the main demographic. Sort of like being a Black person extolling the virtues of living in Atlanta Georgia. She is less conspicuous as a foreigner.
Being “conspicuous” can be a great positive. I grew up being “conspicuous”. We had a considerable social advantage thereby.
Singapore (and formerly Hong Kong) were great places for an unmarried white man with resources.