Chung Ju-yung
Chung's joining of Grand National Party is an irony because his withdrawal from the presidential race in 2002 supporting Roh Moo-hyun was responsible for Grand National Party's failure in winning the presidential election. The party's candidate Lee Hoi-chang received absolute support from conservative or anti Jeolla voters. By the help of Chung's withdrawal, the election became bipolar between Roh and Lee, and Roh turned out to be a winner receiving exclusive support from reform-minded Korean voters. Grand National Party had to wait another 5 years to produce a president from this defeat. Also his declaration to support Lee Myung-bak when he joined Grand National Party is an irony. When Chung's father Chung Ju-yung ran for the presidency in 1992, Lee Myung-bak supported Kim Young-sam instead of Chung Ju-yung despite the fact that Lee made fortune and fame when he worked at Hyundai. Chung Ju-yung even bought him a luxurious house when Lee worked for Chung Ju-yung. So Chung supported his father's ex subordinate who in fact hadn't supported his father in earlier presidential race.