i think bitcoin can't help poor country because in poor country. alot of them have a currency not easy to bitcoin help them
If there is an easy way of exchanging the local currency to bitcoin and vice versa then I think the picture might be different.
However I believe that bitcoin can help the economy of a person and not the entire country. Changing the economy of a country is a very tough job and it requires huge input for some individual bitcoin group, and I doubt anyone would try to do that in real life.
It definitely helps my life FYI but not sure if it help others, it must be depending on how we use bitcoin and I am pretty sure some people are using it for gambling and mostly poor people does, and we know in gambling people loses more than he win so it would not help for them.
This does not help the poor in overall unless the government will push bitcoin.