It's a good idea, all people will be easy to send money so that aid to poor countries be receive directly. From the other side of the economy can also be utilized for the mining venture bitcoin.
Honestly it's true, with the support of the government it would be possible to help poor nation but they have to sacrifice the current player in the remittance business. With bitcoin it's cheap and fast so I do not find any reason why this should not be supported.
then what will happen to the country when they have received and adopted the bitcoin? I think the rescue of not only that, you have to have such citizens to work, at least work in bitcoin then poverty will be lost