I hope with technologies like solar power we can give energy to all the people of the world, and they can then benefit from initiatives such as Manna.
Im on Manna for a month now, and for a first world person, the payouts are tiny, but if you are living on a few dollars a day, then this could be significant.

Certainly block-chain can be more than just about money, people who have nothing have issues proving they exist just as you allude to with banking. Imagine living in a country with no birth records, no banks, nothing, how do you prove you, are you. I think projects like Manna, SolarCoin and others can help to achieve so many things for the invisible people of the world.