So what? They are still bound to stay within the limits of the Constitution. We are not a Democracy, but a representative Republic. They are the represenatives, true, but they are not free to do whatever they D*&$ well please.
Unfortunately for you and I, they do. Our way to express our views most powerfully if our representatives don’t listen to us while in office, maybe our voices would register better were they not sent back to Washington (or any other elected office)!