True, but the selection is made by people we did elect to represent our interests, so what happened?

--Did we elect the wrong reps?
--Did our good reps turn bad, but get re-elected anyway?
--Does something about the current system render even good reps powerless?

Whatever the answer, I find it hard to believe that our rank-and-file membership is not ultimately at fault if we claim to have gotten unsatisfactory leaders, one after another.