Communication whore
Someone who sells their communication skills to achieve objectives they don't deserve otherwise.
She spent her life whoring her communication skills and finally became a CEO. She communicated with such excellence that it altogether covered up her utter incompetence in everything else. Then, the moment came when she no longer could hide herself from tackling the real issues affecting her business. A board member called her spade a spade and she had to step down. A communication whore finally exposed.