That's a great graphic. It really puts things into perspective.

I would imagine that people are more in tune with presidential elections than, say, local or city elections. Ironically, the local elections most likely have far more impact on their day to day lives than the presidential one.

That being said, I would be willing to bet that a smaller percentage of people vote in their local elections as well. Meaning, that depending on the size of their community, the people elected to run the lives of everyone within their jurisdiction may be decided by a few hundred, or possibly even a few dozen people. Theoretically (and quite possibly), you could have a city of 100,000 people being governed by someone who was decided on by 1,000 voters*, or 1% of the population.

For people who consciously choose not to vote, for moral or ethical reasons, they're being forced into a system they don't want. Odds are, there's probably a larger percentage who don't vote out of convenience or lack of interest. Regardless, they're caught in a system they never chose as well.

Note: The mayor of my city was chosen by 1,737 votes. The population is near 140,000.