The number of people who use the tired old "they feel the system is rigged" argument are mostly wrong. The majority of them are simply so self-absorbed (and generally materialistic) they can't possibly grasp the idea of structures existing outside themselves.
Look at the approval rating for congress or the President then contrast that with the approval rating of the military (72%), the police (57%), or small business (70%). Source.
Most Americans have the capacity to "grasp the idea of structures existing outside themselves".
Unfortunately this poll simply indicates public responses to news media. Why else would people have an overwhelming approval of
the military, which is droning and bombing people every day, unless in response to the media whitewashing? Either they don't
really grasp it or the public's priorities are horrifyingly dark.
Also, looking at this list, I see just under a quarter of respondents had a positive view of banks in 2009. There's no way anyone could have held that view back then without being totally tuned out.
In any case I didn't say "most Americans" in my original post.