They pay you to do as told for a certain number of hours a day. If you stop doing as told, they will stop paying you.
What if I have been a union steward for 25 years? What if I have routinely been cursed, threatened, held up and bit over 20 times. What if I considered it to be part of providing me a safe workplace. What if I filed a grievance? And made the government pay for it all?