In the days when we had to put in hour sheets in the 80s (the old form 1964), good people still went 'out the back' and took a paycut because they were committed. If they didn't do the shiftwork they didn't get the penalties.
It wasn't 'fair' to them and a composite salary was brought in, so those who were doing procedures,etc weren't financially disadvantaged.
This led to the rise of some people empire building away from traffic.
There are still good people not working traffic and doing office work.
What has happened was that the back office pay was aligned with operational, shiftworking ATC wages. They have now gone from the point where people doing back office work got less, to where they got parity, to now they are getting a 30-100% premium to those working traffic on a 24/7 roster.
It is these people who will be the arbiters of what is reasonable when you are asked to attend for work on your ROSTERED DAY OFF. I think a $165-200thousand package to not work 24/7 and to not move traffic is an exorbitant pay package to foist on the airlines, especially when we now don't have enough warm bodies to keep airspace open.