Yeah, I really doubt that reading any given book has an impact morality other than inducing a sort of selection effect (i.e. people who are not interested in the environment won't read The Silent Spring unless compelled to do so in high school).

I'm assuming by your concurrence with the comment above you and your association of that comment with "blindspots of morality" that you believe advertising is immoral. Forgive me if this is mistaken, but hopefully it's clear at least how I came by this impression. I am here to tell you that a person can be a reader of Orwell, or Mieville, or whoever, and still not agree with you on a position like the one you've implicitly espoused. You can have similar base principles as someone and come to very different moral conclusions based on a number of things, like access to different data or relatively subtle nuances in you take on some of those principles.