"You cannot force people to be competent."
Every single human being are good at something. It may be in some other fields. Underutilized workers are usually a result of incompetent managers. I once supervised/trained a ADHD student working in our IT lab that has 1.) borderline 2.0 GPA and 2.) consistently harassed by my boss because the boss accused him that he just sit on the screen and reading reddit / running full screen 3D applications (a.k.a. games) all day, and guess what.... when he graduated he landed a software consulting job for above-median wages in the geographical area.
Managing ADHD people requires a different approach to fully unlock their potential. But most managers will just write them off as "incompetent".
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"You cannot force people to do jobs they have no interest in (hi women, minorities!)"
"You can get anybody to fill a seat for enough cash."
The above two sentences can be combined:
You can get anybody to do jobs they have no interested in provided that it pays enough cash.