I come from one of those countries and I know exactly what you mean, it's saddening to see. It's also nice to see people doing what you do because part of the problem comes from what developed nations impose on the "global south", and this is allowed to happen by most people because they don't even know what's going on there. When you make documentaries to show how things are you're helping your way to solve the issue.

I'm fully convinced bitcoin is THE tool to make things better for the masses that are unbanked and are outside the financial system.

A friend of mine is doing something alike with his company elegante.co and I convinced him a few days ago to accept bitcoin, he still thinks it's useless in his field. Check out his work, it's beautiful.