I think I can totally make that impression now. I totally couldn't when I was younger - and when I would have provided you much more value for the money (meaning, I'd work my ass off for peanuts.) I would have failed on numerous grounds:

* desire to ship: more like "I don't care who uses my work, I just want a job"

* desire to grow: more like "I don't know what people grow into, I just want a job"

* rationality: I dunno, I might have tried to fake understanding something when I didn't out of fear

* poker face: I dunno, probably I'd have "very low levels of openness" because fuck, I really really need a job and I'm super nervous

In general, usually the guy who appears nice, sensible and calm is indeed a great hire, but they cost a fortune because they're actually quite rare. A very simple way to hire pretty great people cheaply is opening the doors for the hordes of somewhat-mentally-imbalanced people.