via Sound Politics... and D'Souza still got paid even after the disinvite! I think this is an example of an emotional reaction from the old believers to a changer. They'll pay not to hear him speak.
Lakeside School ...invited author Dinesh D'Souza to speak about Iraq and foreign policy. After he had been invited (by the headmaster), he says that a group of teachers learned that his views were politically incorrect and began a campaign to have him disinvited — which succeeded. They feared, he says, that by inviting a colored, conservative immigrant from India they would sin against diversity. In our modern academy, that's a mortal sin, and so he was disinvited. (Though he will be paid for his non-appearance.)