I could be completely incorrect and I may have misheard, but I vaguely remember an NPR story about how a disproportionate number of successful surgeons, chemists, artists, musicians and engineers have been Haitian. That is, compared with countries of similar population.
Does anyone have information that could corroborate this?
I don't know, but if true, it would demonstrate that their problems are more rooted in policies than any lack of ability. It would prove that they have potential to thrive if not for their socialism.