It's funny how often these discussions degenerate into claims about what 'should' be. When the entire debate is over whether government should have the power to dictate what should be in the first place. I don't get what's so wrong about letting people decide for themselves what they "should" do.
Let me give you an example..... My coworkers and I fought to be removed from a particular Storm Duty that was not really related to our job responsibilities. It took us 4 months to get it straightened out with Management. Suddenly one person in the Department wants to volunteer to do it because it would offer him the availability of more OT.
I had to drag him into a meeting room to explain to him that if he did so he would be undoing 4 months worth of conversations because it would force all of us to do the work we'd just gotten out of. AND it would open him up to Union discipline (inckuding dismissal) when the other 7 of us filed charges against him.