MarkRae makes a valid point - some people really do not know the difference between a comedy construct and the individual behind it.
I believe that is true of Bob Monkhouse who was apparently a charming and caring man offscreen, and played up to his 'smarmy' image which hid what a seriously talented comedian and compere he was.
A friend of mine saw him play a night-club for mixed audiences, and then the same club for 'gentlemen' and the act was completely different - tailored to each audience, and very successful in both cases.