According to Forbes' list of "Well paying rare jobs" political science is oh-tay.
Here is a summary listing the occupation, the alleged number of practitioners and their average salary. The data is "culled from the US Bureau of Labor Statistics data" and you can see them all by clicking on the "in pictures" link from the link above.
Prosthodontists 480 $158,940
Astronomers 1430 $ 95,000
Industrial Psychologists 1140 $ 89,920
Mathematicians 2840 $ 86,780
Political Scientists 3970 $ 86,370
Nuclear Reactor Operators 3750 $ 70,800
Sociologists 3440 $ 68,300
Agricultural Engineers 3050 $ 67,810
Gaming Managers 3330 $ 67,340
Here is Forbes and the BLS on what is a Political Scientist: Most of these professionals work for the federal government and earn more than $100,000 annually. The majority of course work is in Washington, D.C. The BLS says, "May study public opinion, political decision making and ideology, as well as analyze the structure and operation of governments."
Economists don't qualify as "rare" because there are over 15,000 of us according to BLS!
hat tip to BR