You must also have the "looks" in order to persuade your clients that you know one thing or two, all the knowledge and blah-blah-blah in the world wont help you if youre not in shape.
I agree to an extent, but knowledge will always be much more important than aesthetics.
And lets face it, the avergae person looks like shit. I never have claimed to look good, but i would say it is apparent that i workout, i.e "practice what i preach".
Rely on your looks alone and lets see how far that will get you.....