That makes sense, the only other types that would even apply are those desperate for a state job and/or that think that they can improve things from the inside. Neither of those are likely to last in the profession very long, so weeding them out before investing resources into their training etc makes quite a lot of sense on a pragmatic level.
Here is a link without tracking tokens:
https://youtube.com/watch?v=3zpWtB-m3SM
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