Hi there,
A quote from Mr. Gates:

"...
Third, mobile banking will help the poor radically transform their lives. Today, some 2.5 billion people don't have access to cheap and easy financial services -- a problem that makes it much more difficult to be poor. If your savings is in the form of jewelry or livestock, for example, you can't very well chip off tiny pieces to cover routine daily expenses.

But in the next 15 years, digital banking will give the poor more control over their assets. The key will be mobile phones. Already, in developing countries with the right regulatory framework -- such as Bangladesh -- people are using their phones to store money digitally and make purchases. By 2030, 8% of the adults without bank accounts today will be doing the same.
..."

With low transaction and transfer fees of crypto-coins and also availability in mobile phones, I think it's a potential ground for EMC2 and crypto-coins in general. Also with aid coins, more than one target coincides: first, use of crypto-coins by developing world and poor people for their savings and transactions; second, aids for that regions of the world in need (may be some giveaways from faucets for people in that regions).

For the full text:
https://www.linkedin.com/pulse/our-bet-2030-bill-gates?trk=hp-feed-article-title