I hate to contradict Noam Chomsky--

But it's not that people expect Bernie Sanders will set things right and put things in order; although he will if anybody can or will.  What's important is that he is the only one, among the Zoo of both Democratic and (shudder) Republican presidential candidates in 2016, with enough Character to realize that that's what has to be done, and with sufficient Intelligence and Courage to try to do it.