Last week, South Koreans saw the arrest of yet another former president as Lee Myung-bak was taken to jail on charges of graft. Lee won a landslide victory in December 2007 and served as president from 2008 to 2013. In the 1990s, Chun Doo-hwan and Roh Tae-woo were jailed, and Park Geun-hye was jailed shortly after being removed from power a year ago.