EMMA BATHA COUNTRIES must put more women into leadership roles to build a stronger post-pandemic world, a top U.N. official has said as data showed women could be waiting more than a century to see equality at the highest political echelons. Phumzile Mlambo-Ngcuka, who made history as South Africa's first female deputy president in 2005, said gender-balanced cabinets made better decisions not just for women, but for society as a whole. Global progress on getting more women into top roles is frustratingly slow, she told the Thomson Reuters Foundation. But she believes Kamala Harris's appointment as the first female U.S.…