The real question is, Can poor countries help Bitcoin? I don't want people using Bitcoin that only earn $2 a month unless there's a couple of billion of them using it.
Besides, don't they have shit like M-Pesa to send their penny's to each other?
To be completely honest it probably isn't that likely that there would be much value generated for Bitcoin, even if there were a ton of people from poor countries using it, because simply put there either wouldn't be enough drive for them, unless they were able to suddenly make more than $2/month and they understood what they're doing, and they get active within the economy. Having them just own Bitcoin and them doing nothing with it doesn't really help anyone.