Melquiades was an impoverished Peruvian teenager, desperately ill from tuberculosis, when Jim Yong Kim urged him to take a highly effective medicine that some deemed too costly for the poor. More than a decade later Melquiades is a healthy, thriving accountant and Kim is president of the World Bank Group. Watch their emotional encounter at the World Bank Group –International Monetary Fund Plenary, where Kim declared that ending poverty is not only a moral obligation, but a smart goal for international prosperity.