> Like literally any single poor person in the world, that money will go first and foremost to securing basic life necessities (food, shelter, water, medical bills), and the rest is gonna get reinvested in their local town or village (either by starting a business or by paying for education).

Just because you solve their main issue it doesn’t mean that money will be “reinvested” by an uneducated person. You can still have grants for people with ideas, but handing out bills in villages isn’t going to change their lives.