> an untrained and unspecialized human

An untrained and unspecialised human can be trained quickly and reliably for the cost of meals and lodging and will very likely actually try to do the right thing because of personal accountability.

Delegating responsibility to badly-designed or outright unfit-for-purpose systems because of incoherent confidence is plainly a bad plan.

As for the other nuances of your post, I will assume the best intention.