From Darwin, Ahead of His Time, Is Still Influential at The New York Times.
The yearning to see purpose in evolution and the doubt that it really applied to people were two nonscientific criteria that led scientists to reject the essence of Darwin’s theory. A third, in terms of group selection, may be people’s tendency to think of themselves as individuals rather than as units of a group. “More and more I’m beginning to think about individualism as our own cultural bias that more or less explains why group selection was rejected so forcefully and why it is still so controversial,” says David Sloan Wilson, a biologist at Binghamton University.
Witness: Anthropogenic Global Climate Change. We are watching group selection in action.