7. Gen Nakatani
Gen Nakatani has served as the leader of the Japan Defense Agency under the PM Shinzo Abe.
He is the former Ground Self-Defense Japan Force officer. He served for his 9th term in the lower house and elected from the electoral district Kochi # 1i n his first attempt in elections.
In 2001 he was appointed as the head of the defense agency and in 2007 he was promoted to the defense minister of the country. Gen Nakatani estimated net worth is 33.3 million dollars and he is ranked at No. 7 in the list of top 10 richest politician of Japan.