I've never had a priest lord over me about anything. I ask his opinion on things at times and he gives me counsel, but never orders.Even if there was a gap in time between the growth in orders of the clergy, I don't think that would make the priesthood illegitimate. As the Church grew, she needed more people to help serve. It could be as simple as that. I mean, you can't run an airline with just one pilot.
That's an opinion, but it's not apostolic. In Christianity we are not allowed to innovate. The priests today lord over their people and exercise an authority which the apostles never gave them.
I think the seminary or monastic experience weeds out those quite quickly.
Weeds out what, exactly?