Maybe having nothing to steal, and vanishingly few opportunities for corruption in academia leads to people actually doing the research they are supposed to be doing because there's nothing else to do?
Perhaps human nature is that people actually do useful work in some conditions when allowed to?
Or are you arguing that keeping people in a state of poverty is a good way to motivate their altruistic tendencies?
The only countries next to Cuba that are richer are the US, the Cayman, and the Bahamas.
Two of those don't even have enough population to make it into the 100 biggest cities.
https://www.statista.com/statistics/802613/gross-domestic-pr...
Then you find 20-26k USD.
The CIA estimates it at $12k. At $26k USD it would have a standard of living similar to Russia, Turkey or Greece. Which it most certainly does not.
Citation needed. You can't just make up your own GDP figures.