This really depends on the profession. I've made a lot more money as a Commissioned Officer in the USPHS than I would have working in environmental health for a state or county health department.I doubt there will be much wiggle room. Ultimately, if your in it for the money, don’t work for the governmen.
Granted, I've changed jobs over the years and now work in our interoperability and IT programs.
Can't complain about my salary or retirement.