The real problem with voting is that, it doesn't really matter who gets elected. Whoever you elect, the outcome is going to be similar. Sure some details might be changed, some differences will happen, but it's all irrelavent.
It's those who contribute large sums of money to politics that are in control, they simply allow politicians to buy votes, in exchange for favors.
In a true democracy, voting would be important, but in our current system, whats going to happen is going to happen regardless of who you vote for.