In 2007, when he was still working for Fannie and Freddie, Gingrich talked up their virtues.
http://thinkprogress.org/economy/2011/12/02/380699/gingrich-fannie-freddie-important/
In 2008, when his contracts with Fannie and Freddie ran out, Gingrich bad mouthed them.
And you are using this as something to admire Gingrich for?
Gingrich was a contracted consultant for Fannie/Freddie.
He did not work for them ever. He was never on their payroll. The contract was similar to every contract that Gingrich Group had. The amount was similar, 200 grand, and the product purchased was the same.
For a speaking engagement, the Gingrich Group charged in the neighborhood of 60 grand.