Why do campaigns even have to be so expensive in the first place? As a non-American with an outsider view, the American elections always look so glitzy and colourful compared to elections in other places. They wouldn't spend all that money and go to so much trouble to change legislation if it didn't really influence how most American citizens think. Even the writer of the article itself (see bold) writes as if she assumes that American citizens are so passive that they would necessarily be victimised by the random things they hear because they will believe anything you tell them via advertising/TV. Why would voters be “forced” into a couch-potato role? How can anyone “force” you to be a couch potato?
If America is turning into a corporatocracy, isn't it up to the people themselves to exercise their personal power? Compare with how the people of Iceland are standing up and refusing to be held in debt slavery to pay off the debts of private banks with interest on top. America could do the same. It doesn't matter if corporations spend their money on shouting out their message. Nobody has to listen if they don't want to.