If employers cared more about intelligence than conscientiousness, you'd think a college admission would suffice for employment. (Heck, I don't know, maybe it does with certain colleges.)

But as wedrifid points out, this would require the system to be sane, which is not that likely.

This is vastly over-simplified.

Of course it is. It is a single sentence, not a detailed map of the desired hiring conditions for every job in the world.