There is nothing wrong with very rich people serving in congress. Of the 535 congressmen and senators over 250 of them are millionaires. That is a very big number though. Senator Bingaman and Senator Udall are listed as millionaires. Congressmen Martin Heinrich and Ben Lujan Jr. are amongst the poorest in the congress. I am glad they are there but also wish they were doing better. But at least they know what it is like to struggle as folks with little assets have to do. Sure, they have good salaries at $174K a year. But running two households on that is not easy. $500K won't buy much in DC when looking for a home. It would not be a problem for the oil and gas mascot Steve Pearce. He is worth up to $30 million and really doesn't need a congressional salary.
All of this spills over into campaigning and politics. The very rich are essentially self funded by themselves. They can pursue their own self interests without worrying about stepping on donor's toes. The poor must spend every breathing moment on the phone raising money for the next election cycle. This puts them under the thumb of their contributors.
Unless this nation changes its approach to campaign funding then we will continue down a slippery slope of the rich running everything. Think about the basic fact that close to 50% of our elected officials in DC are millionaires. And think about the percentage of rank and file Americans that are millionaires. Something needs to change.