it's all about the skim. Inject yourself into the middle of 2 points and you can siphon off a portion of every transaction. We call this being a parasite. Some are useful, some are unavoidable, but legally protected ones are properly demolished.Instead, the networks lobbied politicians to pass laws that make it illegal for cable providers to offer ala carte channels. They have to be sold in packages or bundles. It's bullshit.
One parasite that serves the public "good" (for some definition of the term) is actually stock brokers. Not everyone can pass the tests and become a registered agent. And since there is very robust competition among the "gatekeepers astride the transactions in financial instruments" transaction fess (the siphon) have come way down to almost zero. So now even your dog can trade stocks should they want to.