At first I thought this was going to be about another kind of embarrassment, that of feeling inferior for not being as well-off as someone else you meet.

You're right though, there's a certain stigma attached to being wealthy. But with most of the rich people I meet, it's hard to judge. Here in Japan, the social fiction is that everyone is the same, so rich people tend not to stand out so much, and there's not as much social stratification to begin with.

In America though, there is definitely often that atmosphere of being evaluated by others.