ID is a rival theory, a scientific theory, doing the normal work that scientific ideas must do to supplant a currently dominant idea.
Despite the notoriety of Wallace in his own day, he remains a comparatively obscure figure in the history of biology.
Wallace broke with Darwin and became, arguably, the founding father of modern intelligent design theory.
Following Darwin, with an assist from Stephen Jay Gould and Richard Lewontin, Ken Miller proposes that human reason, consciousness, etc. are exaptations, or “spandrels.”
I enjoyed Wilson’s book, and I learned a lot from it. But this biography’s most interesting feature is its firm rejection of Darwin’s theory of evolution.