Whose Overpaid?

There has been a lot of discussion about how teachers and State employees are over paid, but why stop there.  I'm sure if we thought about it there a lot people who we would consider overpaid.  I never see this issue discussed.  For example a PhD scientist likely working for the Government has as much education as medical doctor but earn substantially less.  What about CEO salary or bankers, or stock brokers.  I know that we are paying for talent here,  there has never been a group of people who either by design or through gross negligence could have destroyed the world economy.