Government work has aspects of a calling; but so do most professions. A doctor in private practice is no less called to medicine than one working at the VA and the investment manager helping my elderly parents derive the most value from their retirement savings is performing no less a public service then the ones who manage the state or city pension fund.
We all need to be dedicated and have a right take pride in our work but lets not break our arms patting ourselves on the back either. The holier than thou, "I am a saint because I am in public service" attitude is as annoying as it is undeserved. If you go to work every day committed to providing real value to your customers and the community, it does not matter who signs your paycheck.