If Galt was responding to an ignoramus like Dumbass Dave, as an example, use of "wallah" might be appropriate.<quoted text>
I dunno, where else is a bigot with no knowledge of history, technology, science, English, etc. going to get a job?
Perhaps Carol was responding in that vein.
On a more serious note, far too many schoolteachers have education degrees instead of degrees in subject matter, because that is what the job market encourages. Third-rate teacher colleges are a pipeline to employment at many school districts, with those having subject degrees from better, out-of-state colleges being at a disadvantage.