Do they not want ambulance drivers in Denmark? That is mind blowing to me.
I'd argue that someone hitting an ambulance crossing a red light should be considered on an individual case, and we should accept that 99% of the time, everyone (who are not driving an emergency vehicle) are on mental autopilot and it works Just Fine (tm) and that when the rare case comes, we should accept that, we shouldn't punish people for being humans and not hyper vigilant machines.
Sure, it's easy to argue that "when you drive, you should DRIVE!" yeah, sure, outside of the race-track, that's just not how human brains work, without some boost of adrenaline, there's simply no way to keep the kind of vigilance required to act correctly 100% of the time.. (heck, I've driven out early during races because I've felt myself going back to "just driving around" mode).
High pressure, intensive work comes with an inherent risk. Attempting to reduce this risk by adding additional pressure with threats of punishment to the people who do this extremely important work every day seems grotesque to me.
Reduce the pressure and intensiveness of the work as much as possible. Accept that these people are already inherently motivated not to kill others or themselves by accident or neglect.