Is there really a benefit to "less?" If you consider human nature, then absolutely!
We're born with faith. It's a natural response. Cynicism is learned. Does it have to be learned at all?
Doing what you promised and doing your best is the most important thing if you want to serve a client. If the client is happy, then we ARE the best
It's common sense - be nice to people and they hire you more. If we turn the disconcerting experience into a show, entertaining, and draw someone in a way that DOESN'T exacerbate their insecurities, it's in our best interests to do so - "loose portrait" is the result.
Why do you insist on staying in character?
What is a creative to do in this environment? How do you distinguish yourself in this dichotomy while at the same time convince potential clients of your trustworthiness?
I hate to admit it, but the stereotype is alive and well.