People don't take time-out from their careers with "government service" without some expectation of benefit downstream. One of the benefits is a FEDERAL RETIREMENT ANNUITY. Might not seem like much, but you only need 5 years to qualify for the minimum payment. Their present high salaries might look pretty puny down the road, but they'll still be considerably higher than the average federal worker at retirement which multiplied against a "high three" may be fair dinkum..
A one-term President will simply ruin your promotion opportunities every single time, so all you'll get out of these appointments is about 3.5 years service time. It takes another 1.5 years to get that 5, and your time working as an appointee in the FAILED OBAMA REGIME is not going to help you get a "better job" or an equal appointment in some hypothetical future Democrat Presidency.
Interesting. Disturbing.