In Super Crunchers, it describes a meeting between Epagogix, some potential investors, and some Hollywood heavyweights. The investors quizzed the movie guys on why they didn't want to buy in - the movie guys said that even if Epagogix could get 100% accurate, they wouldn't use it. If they used it, they would lose some of their own influence, and so they wouldn't get invited to the right parties. The investors loved that response, because it meant that the market was ripe for disruption. Epagogix wasn't so happy, though.
When broadcasters control a channel, they don't just get to tax it. They get personal perks as well.
You might think that the purpose of toll boothes is to pay for roads. People who work in toll boothes might think it's the other way round.
TV channels are the same - you might think execs are there to ensure only good shows get access to limited screen-time, but they think that limited screen-time exists to keep them in a job.