The US would be far better off figuring out how to make its politicians do a good job before worrying about how outrageously they are compensated. Even the current fog of corruption they manage isn't as big a deal as the policies they push through as part of their routine above-the-counter activities. It's a sausage factory, the process of making the sausage isn't going to be pretty.
[0] https://en.wikipedia.org/wiki/List_of_United_States_presiden... alone and you just need to look at Obama before and after to see what the stress does.