I think Japan. After the bombings of Hiroshima and Nagasaki were in ruins, disease, poverty, and crime were rampant. The Japanese government took great measures in uplifting its people in the coming decades. By the 1960s, Japans economy was one the fastest growing in the world. Japanese exports grew to dominate world trade as major corporations such as Sony and Toyota became household names. Today Japan has one of the best health core systems and the lowest street crime rates. It also has a lot of millionaires.