Ok. I will take your word for it since you are obviously an expert on how every rv manufacturer works.
Most companies where i did a factory tour the workers were paid based on how many units were completed not by the hour.
No they aren’t paid by the unit, anywhere, ever, except for production incentives and no they don’t just grab whatever fastener is near. You should consider taking a tour.Seems like they just grab what is near rather than using the correct fastener or using all the same fasteners.