I dont think this is a good question because how do you think bitcoin can help poor countries do you really think that bitcoins can help them grow if they dont have money for food how would they have money for bitcoins lol.
They don't need to have money in other to start making money through bitcoin cos the scheme is going to be a voluntary or involuntary scheme where a group of people or duo provide the poor countries all the needs to start doing bitcoin.
Well, you have to let them work for bitcoins if you will not require them money to earn in bitcoin world. I guess it cannot really solve the problem, poor people are not really into technology so we'll be having a hard time to introduce bitcoin to them sine we do not even have the best idea on how it could benefit them to give them additional income.