Dissonance and Evaluation

While it may be debatable that Wagnerian dissonance is 'beautiful', it is less deniable that it has been influential.  Thus, the challenge that it poses to traditional Aesthetic Theory is: which between Beauty and Influence has higher value?  Plainly, according to the Will to Power principle, it is the latter, e. g. what is notable about the beauty of Helen of Troy is that it 'launched a thousand ships'.  Thus, that Dissonance excites, without necessarily being beautiful, is not only no argument against its Aesthetic value, but, in fact, can be the best argument for it, upon a revaluation of all values in terms of the Will to Power.  Similarly, the joining, if not supplanting, of Apollo, the god of Beauty, by Dionysus, in the Birth of Tragedy, can be interpreted as Nietzsche's earliest step in that revaluation.