Now he is out of the race, Mr Ahn has thrown his weight behind another independent, Park Won-soon, a social reformer.

ECONOMIST: An entrepreneur shakes up the political landscape

Another of Sellers's shows championed Constance Spry, the social reformer, author and florist who educated millions of British people on the art of beautifying their homes in the mid-20th century.

WSJ: Libby Sellers Knows the Art of Design

Disturbed by the health, environmental and social implications (scavengers are regarded socially as untouchables), a sociologist and social reformer named Dr. Bindeshwar Pathak started an organization in the 1970s to address the problem.

CNN: New toilets, new lives

He's a professor at the College of Mexico and a political and social analyst for the Reformer newspaper.

NPR: In Election, Mexicans Faced a Dichotomy

But his career would finally be crowned with success if he were to be the Christian Democratic reformer who helped a Social Democratic one to reshape the country.

ECONOMIST: Kurt Biedenkopf, king of Saxony

Father Ratzinger was initially a reformer, says Professor Tina Beattie of Roehampton University, but was appalled by the social unrest and student uprisings of the late 1960s.

BBC: News - Today - Benedict's big society