It's true and important that these problems apply to democratic decision making. It is not given (without evidence and/or argument) that it is "at least as susceptible". In general, I'd think it less susceptible, because poor decisions from my lack-of-involvement are more likely to disadvantage me than to disadvantage any other specific individual; this is not the case when neglecting to contribute fungible resources toward welfare or defense.

Even so, voted up for introducing an important point to the discussion.