Your title asked a question about Bitcoin and it's ability to help poor countries or nations. But the content of your thread is drifting and rather focusing on crypto generally. Bitcoin is a crypto currency yes but that doesn't mean it operates as every other crypto currency, when comparing crypto currencies you can't just generalise everything as one and the same thing. Bitcoin can help a country grow out of poverty through strategic reserves. They use their national reserve to buy some Bitcoin store them and expect the profit after some years.
Not all crypto currency guarantees this. So to avoid making mistakes on which project or coin to move with it's best if a country limits their investments to Bitcoin, after some years use the profit to develop their country and Invest in other real life development and also in the advancements of their country. Every nation that came out of poverty had a time they made an investment in that changed the GDP of their country.
So far, El Salvador is the country that has been adding bitcoin to its national strategic reserves for years and they are even making big profits from it. Did they escape poverty with bitcoin? And if they could escape poverty, why are they willing to negotiate and borrow money from the IMF?
It is true that bitcoin is the best, safest and most investable currency in the market but when it comes to improving the economy of a country, bitcoin or any other cryptocurrency is the same. Whether they act as currency or assets, all of them cannot help or improve the national economy.