I personally think Elon Musk should loan a billion or more dollars a year to https://www.kiva.org/
Where the UN exists as a corrupt body pursuing venal interests, usually leading to, and supporting, tyrannies of all sorts, Kiva makes loans directly to individuals. It bypasses governments, not in large ways, but small ways. Small ways are sustainable. There is not enough money there to be worth stealing, but plenty of money to change lives.