My sister has a trade and has talked about the salary distribution enough that I think it’s going to be very hard for anyone to ever agree on numbers. She desc

My sister has a trade and has talked about the salary distribution enough that I think it’s going to be very hard for anyone to ever agree on numbers. She describes it as a bimodal distribution. One (smaller) group of people with trades are willing to work anywhere whenever. They work in fly-in camps with limited work seasons and practically unlimited overtime. Since there’s nothing else to do, they log enough hours to get into double and triple time. The other (larger) group goes home after work and their overtime is limited to nonexistent. The pay is so different between the two groups that if they’re analyzed together, the statistically typical tradesperson looks nothing like the typical tradesperson.