We've given billions to poor nations over the decades. This is the result for non-perfomance based loans from the World Bank:
Experienced little or no economic improvement. Of the 85 countries receiving IDA loans between 1980 and 1999, 33 experienced negative compound growth in inflation-adjusted per capita GDP (their people became poorer); 20 countries experienced between zero and 1.5 percent growth (their people experienced marginal increases in wealth); and 28 countries experienced growth greater than 1.5 percent. 7 The data clearly show that nearly two-thirds of IDA borrowers in the past 20 years derived little or no benefit in terms of per capita wealth. In fact, recipients are more likely to be worse off after the loans than they are to experience significant economic growth.