"In the 1890s, when Freud was in the dawn of his career, he was struck by how many of his female patients were revealing childhood [sexual] victimization to him. Freud concluded that child sexual abuse was one of the major causes of emotional disturbances in adult women and wrote a brilliant and humane paper called 'The Aetiology of Hysteria.'"
I think it's distinctly disadvantageous to believe you are a purely rational creature. It leaves you at the mercy of advertisers and propagandists who understand human neurobiology far better than philosophers do.
It's eerie how Joseph Heller predicted the machinations of the military-industrial complex with such exactitude. Milo Minderbinder was supposed to be a satiric figure, but we are essentially arming our future enemies with high-tech weapons which in turn justifies the development of even more powerful weapons.