Anyone who has to deal with the general public on a daily basis is severely underpaid.
I am burnt out by the fraction of customers that treat my work, my coworkers, and myself with disdain, entitlement(the customer is not always right), and ignorance. I love my regular customers that treat me like a real person, but I don't know if I can afford to live anywhere close to where I work currently.
CEOs are overpaid too much to know too little about what is needed and necessary for day to day operations on how to serve that general public.