The best antidote to too much money in politics is larger turnouts. If you don't show up, you are increasing the power of too much money. If you don't show up and vote then you are increasing the likelihood you will be next on the list to be disenfranchised.
Remember that the aim of most political attack ads is not to get the viewer to vote for a given candidate but to get the viewer to not show up.
If you want to make a difference, don’t watch TV, always vote, and always vote what you believe.
Also, remember that the turnout in Afghanistan was over 50%. Many of those people showed up at the risk they might come under a terrorist attack. Can’t we do much better in the U.S. where our only risk of going to the polls is an auto crash?