Kicking the Bethelites out was a great economic move. Computers and machines nowadays are capable of working faster and better than people and don't have any needs apart from energy, a screwdriver and some oil here and then. The Society is moving into the 3rd millenium and it's planning on staying a little longer in this wicked system of things.
And more important, machines don't spread uber-secret materials on apostate forums on the Internet.