Earlier quoted context omitted.
I upvoted you because it's a good point, but if you're discussing interpersonal behavior, does it really matter if someone living in poverty in the American deep south is in the top 2% globally for PPP? Studies like this are not looking at the world as a whole, they're looking at interpersonal relationships, by definition very local or regional.
The super wealthy proclaiming without citing evidence that the mega wealthy are evil or cheated somehow is a pet peeve of mine, it just seems petty when you put it into a global context.
My point was specifically that a global context doesn't make sense here.