4. Agustin Carstens
Agustin Carstens is the Mexican politician, economist and currently served as the Governor of the Bank of Mexico since 2010. He was also the candidate to become the managing director of the IMF along with Christine Lagarde.
He also served as the secretary of the finance of Mexico the deputy MD of the IMF and as the treasurer of the Bank of Mexico. Agustin Carstens estimated net worth is US $ 23 million and he is ranked at No. 4 in the list of top 10 richest politician of Mexico.