I eternally cling to the hope that someone can be a profound writer if they can't spell... if not, what have I been doing for the past two and a half years? Because let's face it, we all know I can't spell to save my life, but hopefully, I can still be a great writer.... Hopefully.
But it's true that there is a definite correlation between extent of vocabulary and extent of communication of thought... so maybe you can be a successful writer without really being a profound writer, that way, it would appeal to the masses, none of whom can spell....