Is the Denial of Book Promotional Rights the Same as Censorship?

i don't know much about the literary industry or publishing, but as an avid book reader, i am sickened by how corporate and commercial books have become in the past decade. everything is tied in to television series or movies or product placement. there's no such thing as "a good book" anymore; it's all about how "commercially viable" the book and author are. take twilight for an obvious example. one of the most poorly-written novels EVER published, yet it has sold millions of copies simply because the executives who published it knew they could shove it down the throats of the teenaged masses, who would buy it and the movie without question because THEY WERE TOLD TO. it's disgusting, and the media is to blame, because they are the ones who get paid by the publishers to hype it up on tv and in the papers. i think if this richard perez guy wants to martyr himself in the name of good literature, then he has my support, even though i personally who never read a book like permanent obscurity. however i highly doubt that one man has the ability to change the corporate machine that presently dominates our culture. he would need some powerful lawyers and a whole lot of publicity as well.