how are poor African countries with wars benefit in cryptocurrecy system or blockchain tecnology ?
The main financial issue in the African countries is that there is not parity in wealth distribution. Bitcoin or any other cryptocurrencies doesn't have the power to resolve this issue! The only good cryptos can do is that people will have control to their own wealth where government can't interfere! However, the main reason why majority of the African countries are in bad state, is the failure of their governments. Otherwise, Africa sits on the richest mineral and diamond deposits, they can be the richest continent on earth. But due to failed administration, they have become the poorest continent! Blockchain or cryptos can't do much unless the governments want it, apart from having control on their own wealth!
I am from Africa and I believe the advent of cryptocurrency has really helped so many African to be able to bridge the gap that exists between working online and getting paid. Before, it was not easy to work online. Not because Africans do not have the skill but most payment processors are not available for many African countries but with many crowdworking platform increasingly accepting crypto, Africans can now compete with the rest of the world. I used to be a crowdworker on clixsense but I left when I could not withdraw my earning but when Clixsense integrated bitcoin via tangocard, I was able to withdraw and trade my earning.