Laws are just a consequence of an actual cultural change, and can only succeed (and not precede) the conversion of hearts and minds. Voting and democracy should not become a device to placate the dissatisfied masses into silence, make them lineup for ballot, to choose a lesser evil who, in most likelihood, will turn out to be a egotistical power-seeker. We shouldn't conflate voting with "will of the people."
Especially when races can be so close and you have to wait up to 6 years to vote someone out. 6 years is a much different time frame politically today than it was in the 18th century. A term that long doesn't shield senators from political pressure, but it allows lobbyists to get more bang for their buck and further the power imbalance between rich and the rest of us.