My wife's schedule is 12 hours: 7 to 7. Except nine out of ten times she's there until 8 or 9. It's "scheduled" but much closer to BAT times then sun revolution times. Any talk of schedule is discouraged and nurses are fired very quickly if they don't become "team players". Engineers in the valley have a lot more leeway because hiring is a lot harder. I can actively push back against my managers. My wife would be fired on the spot.

You're making numerous points and your later ones are good ones. But the working conditions for front line workers, including but not limited to their scheduling, hours, pay, etc, are all terrible.