In liberal society we claim that freedom of speech is sacred and therefore has an absolute character. But we know (or should know) that "free speech" inhabits a structured space: not only is "hate speech" legally forbidden in liberal societies, but there are also laws protecting the circulation of copyrighted material, and the reproduction of trademarks and patents without explicit permission.
Art that submits to orthodoxy, to even the soundest doctrines, but lacks imagination and deep self-expression is lost leaving only the craftsmanship.