Give them money
Money with no strings attached not only directly raises the living standards of those who receive it, but it also increases hours worked and labor productivity, seemingly laying the groundwork for growth to come.
You don't need a PHD in economics from a fancy school to know that. In fact, pretty much the whole point of the degree process is to keep you from knowing that. Culture does not exist to teach morality; six-year-olds understand the Golden Rule. Culture exists to create exemptions to the basic idea of fairness we all come equipped with.