The average "unbanked" person in a third world nation couldn't afford a $20 transaction fee for their ordinary transactions. But bitcoin certainly looks like a way for some portion of this group to protect their capital since it's not controlled by states want capital controls.
Of course, there's a reason third world countries want capital controls - a lot of the people seeking to export capital are corrupt non-owning possessors of resources. Just as an example, whatever rank administrators within state oil companies and such who want to take things that actually belong to the nations - because such nations have rather weak administrative classes (not that the US isn't moving closer to "kleptocracy" itself).
So everywhere, bitcoin certainly looks like a device for protecting value - except once all the money that wants to move in has moved, then bitcoin's lack of actual practical use (see $20 fees) will make it not terribly valuable and all that money in it will be at a bit of risk.
Plus, phone-based money systems already are coming/in Africa. They solve the ordinary transaction problem. The problem of "how do you get money out of X currency or resource" isn't a logistics problem, it's a power-struggle. The reason Y person is fighting to get money out of X currency is Z person wants to stop that happening. But overall, remember neither Y nor Z are likely to be less than fully corrupt.