Bitcoin cannot help a poor country. I have the following reasons which I would like to site:
Low Internet access - If people cant access internet how will they even know about bitcoin let alone do transactions through it.
I think the problem there is only internet access. This is the main problem of people adding to the availability of gadget or tools to use bitcoin.
Low Security measures - totally insecure to them since they have very low knowledge
Poor people does not mean not intelligent and not capable of learning. It is the same as when you are starting to use bitcoin. There is alot of room for them to learn bitcoin. Unless you are saying you are far superior than any human being.
Low Fees for miners - This will hurt miners
I wonder how you relate miners to the poor country. Anyone who is using a light wallet automatically have default tx fee. So i think this does not weigh much.
Low usage - People in poor countries are "Poor" - they need more time to work hard and earn Fiat, since they are poor they would never accept bitcoin as primary source of money and would never believe that it is secure as well.
This is fallacy, since they are poor, they will do anything that is not illegal to get money, and bitcoin is one of it. I am poor but i accept bitcoin as payment to my service and goods. So my statement here proves you are wrong.