I think sometimes, people expect too much from entertainers. Their whole lives are about appearing differently than they really are.
Good observation.
I don't classify Martha as an entertainer. She's turned out to produce a very entertaining show, but she herself? Somehow, I don't see that.
She really is what she appears to be. She has never pretended to be anything else. She never did hide her temper. She just always worked past it to achieve her goals: wealth.
She's a talented woman, driven to succeed and make a ton of money. She'll be a part of T.V. and marketing for years to come. She's only in her early 60's -- she has YEARS and YEARS of happy homemaking to do. She will be the Jack LaLanne of homemaking.