I hardly think writing or any art is as simple as you claim, Slimedog. It's hardly that accidental, and what comes "naturally' is far from natural in some organic sense which people find purer than other modes of creation - the age old dispute about conscious versus unconscious writing, of feeling over intellect, of sense over geometry. What is born naturally or through inspiration is the result of practice, of the refinement of a craft, of long hours of contemplation.
Since you mention jazz, Coltrane, in struggling to express himself to the best of his abilities to use your phrase, engaged in continuous hours of practice everyday, as did Mingus, Dolphy, and Clifford Brown. Coltrane's music is the result of a serious discipline, of studying other forms of music, of his search for the perfect mouthpiece, and truly struggling to express a vision.
I hardly believe that one should accept something simply because it's respected, but I intimated nothing of the kind. No one sucks for not liking anything, you miss the point. Writing or work of any kind isn't of any value just because someone likes it. There are countless people who appreciate Kenny G, but that doesn't mean his music is worth serious consideration. He may be technically competent, but his music is completely generic. It's a matter of expression and of expressive ability, of the intensity of expression; of whether an artist expresses something well, or in an inferior manner. Of whether one has a singular vision, or if one is merely blindly aping others or aping oneself ad infinitum and in discovering something which "works' continuing to do the same thing over and over again instead of boldly risking oneself in the abyss.