Remember, if ANY critter wanted to go on the record against this it could have asked for a roll-call vote. As far as I'm concerned, voice votes are unanimous.
Like other posters have said, if the economic "burden" is too hard for them, they can give up their seat and get a real job.
What actually is the salary of a Representative? Isn't it an act of service? The problem is that members of Congress treat it as if it were their careers instead of just serving a few terms and then going back to their "Careers" where they would make more than a "food stamp salary".