spankyvol, CEO's must indeed dress the part and act the part. That is not different for PPHM's CEO King than for any other CEO.
So I agree that a certain coached 'presence' would help in combination with a presentation skill training (capture the audience, emphasise unique selling propositions, convey enthusiasm with allowed boundaries, etc).
However, before investing in the new blazer and golden buttons, loosing a couple of pounds wouldn't harm either :)