From the Pew Forum on Religion and Public Life:
Americans continue to hold the military in high regard, with more than three-quarters of U.S. adults (78%) saying that members of the armed services contribute “a lot” to society’s well-being. … [T]he military still tops the list of 10 occupational groups, followed closely by teachers, medical doctors, scientists and engineers. A solid majority of the public says each of those occupations contributes a lot to society.
By contrast, just 37% of Americans surveyed think the clergy make a big contribution to society, about the same as in 2009. Regular churchgoers tend to be more positive about ministers, priests and other clergy members. But even among adults who say they attend religious services at least once a week, only about half (52%) rate clergy in general as contributing “a lot” to society, while 29% say the clergy make “some” contribution, and 11% say the clergy contribute “not very much” or “nothing at all.”
You can dive into the clergy data here.