If everyone who was allowed to vote actually voted, I think there's a reasonably high chance we'd have better politicians. As it stands, there's this pretend "virtue" from a bunch of pseudo-intellectual morons who think they're cool by abstaining from their right to vote, and dedicate a lot of time trying to convince people that their votes don't matter.
Cynicism is always tempting but ultimately lazy; if they votes didn't matter then there wouldn't be politicians wasting their time trying to make it hard or impossible for you to vote.