I would argue artists imitating, for example, the artists who revolutionize a genre of music are also in fact massively reducing the demand for the originals by 99%. Imagine if no one ever made a song after the Beetles that sounded any newer. The demand for Beetles music would have remained somehow even more enormous than it was for the last 50 years. Or if no one did abstract paintings after Kandinsky, or impressionism after Monet or cubism after Picasso.