Tony Campolo said this quote
“ He [William Jennings Bryan] recognized that what Darwin proposed on the biological level, when applied on the societal level, might legitimize an ideology that supports the survival of the fittest, with all of its dire complications. Byran was able to envision the kind of society that Social Darwinism would create- the kind of exploitation that comes from unbridled capitalism, for instance- and chose to war against it. ”