I think they have gotten greedy, cocky and arrogant. The behavior of some of them could be considered traitorous or treasonous, especially when you watch them willfully refuse to sincerely investigate blatant crimes or enact the will of the people.
No. The majority of them appear to be chiefly concerned with getting re-elected and appeasing their special interests so that they can continue getting their kickbacks.
We should have 2 term limits, automatic felonies with minimum 20 year sentences for any type of bribery or illegal/immoral collusion and the ability to impeach our representatives easily. Say a 100,000 signatures submitted to a judge in your state creates an automatic vote/election for dismissal/replacement within 30 days of being submitted.
We obviously need to put all of our elected and appointed representatives, federal and state employees on a very short leash and keep them there. Seriously though, I doubt anything will happen before it's too late. Americans are generally too lazy, ignorant and complacent to get motivated enough to effect real change. They are counting on them continuing to sit in front of the TV bitching but doing nothing while the left has it's way with the country.