I would assume it's because they were all thinking as individuals. Each Jahy would only get her regular pay, and being a Jahy would keep it to herself. The idea that they would share it, or it would all go back to the original after the rest were gone, probably never entered their minds.Wait, how would it be the same pay if they got paid 5x the usual amount? 5x100 is still 500 if you give it to one person or five.