Muhammad Yunus, a social Nobel

Forget billion-dollar development projects. When Blangladeshi economist Muhammad Yunus surveyed a poor village in the mid-70s and found that all the money borrowed totaled just $27, he set out to create a new kind of bank, one that would give small loans to the poorest persons, particularly women, without collateral.
With just a few dollars, the poor would become entrepreneurs and pull themselves out of poverty, taking Bangladesh along with them. Today the grandfather of microcredit presides over an improbably profitable banking enterprise that is far along in meeting those lofty goals.
His Grameen Bank have 6.5 million borrowers now, 97% women, all in Bangladesh. Annually, they lend out about $800 million in loans averaging $130. All the money comes from deposits and internal resources, and 67$ of deposits comes from the borrowers themselves. They don't borrow from the government or have funders or external lenders.