As someone who falls under this group, I've often suggested that we should allow more participation for the individual in the democratic process, seeing as how the fundamental assumptions and constraints of society have so drastically changed since the current system was designed:
"In a large society, inhabiting an extensive country, it is impossible that the whole should assemble to make laws. The first necessary step, then, is to depute power from the many to a few of the most wise and good."
-John Adams, Thoughts on Government 1776
Ironically, many of the same people who disparage others for not "participating" enough in democracy (by voting), see a more direct/participatory system to be out of the question, claiming people are too stupid to have more involvement.
They didn't have instanteous global omnipresence that we have today.
We didn't have to travel vast physical distances to do what we are doing right now with eachother.
The second group is those for whom things are going reasonably well - the lights work, the roads get repaired, crime isn't too bad, their economic circumstances aren't terrible, and so why worry? No matter who gets elected, the lights are going to continue to work, and so on - it won't be a radical change either way. (This group may overlap with the first one.)
The third group is those in despair. They see the problems in society, and they see fifty years' worth of politicians who have promised to fix them, and the problems are still here. They've given up on politics as an answer to the problems of society.