To me I believe that bitcoin and blockchain technology can be of help to poor countries with inadequate infrastructures in numerous ways, if been legalise in those countries.
How if I may ask?
Bitcoin is not the solution to countries that are corrupt and can't build their infrastructure from budget allocation that goes into the private accounts of the few or individual who pad budgets to their own benefit.
If Bitcoin creates liquidity for individual through long time hodling, will it all create good roads for business and transactional movement, buying and selling that will increase GDP?
If Bitcoin creates the investment through P2P arbitrage trading and the country doesn't have electricity which is the engine for manufacturing, don't you think diversification will be a mirage?
So the priority of poor countries whose majority of the populace might even be illiterate to Bitcoin or Blockchain technology, is not Bitcoin but good governance that will reengineer the people into developmental milestones.