The positions that the government offers in social change were considerably fewer in number than the non-profits. They do have some positions that would be very beneficial with the right person in the job. So, while positions do exist, they work because of the people in them. Below are a few resources to government jobs. The websites are set up to list all jobs available. Typing in key words will narrow down the search. I typed in civil rights, activism, environmental, disabilities, etc., and was successful in finding many different positions. Several business compliance positions are found under the industrial related jobs category. There are also taskforce jobs, ex. : Disabilities Task Force, which can be found on their websites.
http://www.nlrb.gov/nlrb/about/careers/default.asp (National Labor Relations Board)
http://www.dol.gov/dol/audience/aud-unemployed.htm (Dept. of Labor)
Careers In Government, Pitz, Mary. VGM Career Books, 1994
The Book of government Jobs: Where They Are, What's Available, and How to Get One, Damp, Dennis, Bookhaven Press, 2000.
Real People Working in Government, Camenson, Blythe. NTC Publishing Group, 1998.
Civil Service, Gish, Jim. Learning express Co., 1997.
Additional jobs in government can be found in working with legislators that are sensitive to socially responsible issues. Examples would be Paul Wellstone (D), Bernie Sanders (I), Elijah E. Cummings (BC). Another option in politics is running for office yourself