yes, it is very possible. because with the bitcoin will make everyone easily perform financial transactions. and also they will be easier to get a job.
I do not think so, bitcoin are required gadgets and internet connection to access and to work with and if the people in that poor country can not afford that i think bitcoin can not help them.
True. That will only happen if the government will provide. But that is way impossible. Who will use their funds for a project that he knows might not click. So better stay on the safe zone and just keep the money from the people.