"I was operating on the assumption that someone that successful must be reasonably bright."
Well, I guess it's a reasonable assumption to make, and I suppose someone with that level of success has to be have a skill of some degree.
With that in mind, I consider Rosie O'Donnell. She can be funny - she does a good Donald Trump imitation.
Is she smart? IMHO...no.
So Hannity must be skilled on some level, I'm just not sure what that is.
Yes, you're right. There's a difference between having an economically valuable skill - such as being a TV host - and being intelligent in a general way.
Also, of course, plenty of objectively intelligent people act like fools!