Speakers

A friend criticized my criticism. I happen to think that homilists, retreat masters, presenters and speakers should be entertaining. What's wrong with that? She said somethimes people are there to learn and not be entertained. But why can't it be both?
Personally, IMHO, teachers, priests, ministers, and lawyers make terrible speakers. They are so use to speaking in front of a captive audience, that they just talk--no presentation tricks. To have a successful speaker you have to get an entertainer. Someone whose profession is to hold an audience.
Don't you agree?