Lobbyists are important to our Representatives and Senators. There is no way that any one person can "listen" to each and every constituent in his/her district.
We have a representative system of governing in the US. In a perfect system, the lobbyists would actually represent the constituents, not just the moneyed and corporate interests.
What we need to do is find a way to get the money out of politics and change the focus from corporate beneficiaries to constituent politics.