We had 'Asian road chaos' every fall where the rich ones would show up with their new Bugattis (edit: Maseratis) having never learned how to drive the thing and much less on the open American roads where you can really let the accelerator loose. They would cause endless crashes.
One or two of poor ones would end up committing suicide in the spring when they flunked out and had spent their entire little farming family's fortune back in some austere rice farming village.
It was quite the sight to see. I want to say they were fairly normal in intelligence, relatively, but the set of incentives for them to perform were wildly different.