Jim Yong Kim, the World Bank’s president, is trying to revitalize a hidebound institution. But his embrace of Wall Street is controversial. In the fall of 2016, Jim Yong Kim, the president of the World Bank, sat down with some of the most powerful figures in the global economy. Hosted by Christine Lagarde, the head of the International Monetary Fund, their discussion focused on financial trouble spots around the globe. There was scant talk about poverty, which the World Bank has committed to eradicate.