"The World's Most Perfectly Developed Man"
(b. 1893 d. 1972)
Born Angelo Siciliano in Italy, he immigrated to the United States in 1905.
He developed and marketed the Dynamic Tension technique of body building (with partner Charles Roman) after changing himself from a "97 pound weakling" into a he-man using said technique. This turned fitness into an industry.
He was probably the most responsible party in the conspiracy to make people hate their own bodies.