Why? He is a terrible person and a terrible role model. Greedy, self centered, fosters a cult of personality, emotionally immature, and refuses to acknowledge his own daughter without any good reason. I wouldn't shake his hand if he offered it.
He's a person to point your son to as an example of what not to be.
You would like your son to be arrogant, extremely incompetent in lots of things (reminded that the man thought he knew better than cave divers about caves, and was evaluating developers by number of lines written), publicly embarrass himself weekly, and be hated by all of his former wives and children of which there are many?