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.
At one point, we might think that Bitcoin will help poor countries but I think it wasn't much of a help for El Salvador. Sure, it did a good job but it wasn't something spectacular. Btw on the other hand, to my mind, blockchain technologies have a good chance to help poor countries. For example, in my country we started early adoption and development of blockchain technologies, successfully implemented them in different sectors, and one of the most important adoption was done in land title registry.
The development and adoption of blockchain technologies brought some investors to our country and created an opportunity for local people, to become blockchain developers and get a high-paying jobs.