Apathy doesn't always indicate laziness. It can also indicate that the individual does not find the campaign issues relevant to their interests. Though this is an ego-centric view of politics, it is something that many people feel about the political system, particularly young voters who historically turnout in low numbers. The catch-22 is that for an issue to enter the main political debate, it needs to have a critical mass of voters or interests on both sides of it. So, for those that stay home and relinquish their vote, they've given up the interests of their demographic, and will either fall further into apathy, or they'll grow up.

That said, it makes perfect sense that the politically charged recruit the apathetic to their cause and get them to vote. The formation of factions in this manner is bedrock to representative government.