To me I believe that bitcoin and blockchain technology can be of help to poor countries with inadequate infrastructures in numerous ways, if been legalise in those countries.
Bitcoin as a decentralized digital currency can allow peer to peer transations without the need of bank in countries with inadequate infrastructure, just with the use of their mobile devices if been ligalise.
Could you believe that blackchain base microfinance platforms can provide access to credit other financial services to small businesses owners and entrepreneurs in poor countries, if been ligalise.
Bitcoin can make transactions faster and easier and also low cost of remittance in poor countries, if been ligalise.
Bitcoin can be accessible and use through mobile devices in countries with inadequate infrastructures, for payment if been ligalise.
Could you also believe that bitcoin related projects can make poor countries develop their internet infrastructures, improving connectivity and access to informations, if been ligalise.
If underserved and undeveloped countries where to even consider implementing BTC and the Blockchain technology, they would have to make remarkable commitment that will include investments in setting up digital infrastructures, providing the right education, and they may have to work on the regulatory process that is needed to appropriately ensure everything goes fine in the long run.
Undeveloped countries can definitely benefit in terms of having a say in the financial framework of the country where there's financial services for the unbaked, lower transactions cost and lower fees, transactions across borders, faster and more direct transfer without third party interference and there's transparency which would enable innovation and acceptance.