But is the whole country absurdly wealthy? A rich ruling class might not be large enough to offset the numbers.
In the cases I can think of the whole country is rich, but they have a large number of slave-workers. Not sure if the slave-workers are counted in their health statistics or just seen as property anyway.
Or the slave-worker are foreigner, from Philipines or India, so are not counted in the national health statistics
All of them are foreigners Half of Dubai is Nepalese.