Should the U.S. follow the example of several other countries and make paid campaign ads on TV Illegal? What about spending any money at all on a campaign, referendum, or lobbyist? How would democracy fare if there were no campaign donations, no paid advertising, no paid campaign staff or paid petition gatherers? Only volunteers? How would this be enforced? How could a money-free campaign system still be corrupted?
If your representative in Congress or the Senate has to vote according to the will of his/her constituents, he/she has much less political power, which through Direct Democracy, is in the hands of the people. In this situation, there is no or very little political power for lobbyists to try to buy from your representative.