Dr Ngozi Okonjo-Iweala fought corruption, including spearheading the negotiations with the Paris Club which led to the wiping out of US$30 billion of Nigeria’s debt, and the outright cancellation of US$18 billion. She helped build an electronic financial management platform, the Government Integrated Financial Management and Information System, with the support of the World Bank and the IMF to the Federal Government of Nigeria. She also started the Treasury Single Account and the Integrated Payroll and Personnel Information System, which meant that many ‘ghost workers’ were phased out. Ghost workers are people whose names are on the payroll but are not known to work in the particular organisation. Yet they are paid salaries regularly. By 2019 nearly N200 billion had been saved.