There is a Pastoral company in Queensland that generally, and usually, only hires Private Pilots.
As there are no flight and duty times associated with private flying on private property the pilots are called on to do massive hours per seaon. The season goes from March/ April to Oct/Nov. These pilots fly in excess of 1500 regularly. Work that out. The wages are not that hot either, one bloke worked out he was on $7 per hour. Supply and demand, exploitation, call it what you will but i have never heard a pilot complain about it.
At the end of the season the company sends a nearly time ex aircraft, on the way to be traded in, to a school along with a few ringers and round we go again.
They are operating legally with regard to the pilots who often brag about the hours they fly.