The fact that many communists saw the true light in the person of Berlusconi is more a phenomena of "transformism." Some ex-communists in Berlusconi's personal entity have occupied key positions and have been a driving force of the one true message, while others settled for a fat retirement check. Many a man has price tags all over his arm.
It's very important that communists pass over to Berlusconism. It's tantamount to a conversion, the erring son who has re-embraced the Savior's light. It's a very Catholic thing.
This evening in Cagliari, Berlusconi delivered a sermon to his public. "I am like Jesus... I would like to ordain you defensors, apostles of Truth. Go forth, preach and convert the people..." His fans eat this up.