The government-it industrial complex is controlled by the same sort of corrupt relationships that the military-industrial complex. Come in to that situation with new ideas and you will get slapped down by entrenched interests intent on making use of networks of people moving back and forth between government and industry in order to create personal wealth. New ideas and new technologies only rock the boat.
The classic example is the PPACA web site. Hundreds of millions spent on something that would be a 5-10 million dollar project in a sane world.