What purity teaching did for me was distill me down to my body. The core of purity culture was that my mind didn't matter, my personality didn't matter, my dreams and desires and goals didn't matter -- if my shorts were too short.
Bush never treated his base as contemptuously as Obama deals with liberals. He responded to tax cut criticism by dismissing his critics as sanctimonious and fixated on purist policymaking. This unproductive response is part of a trend.