Personally, I don't see an issue in it being about pay although I also think the protection being removed from unusual shift patterns is a big concern.
The whole thing just highlights how underpaid the public sector is in general. I was always wrongly jealous of my med student mates at uni, thinking once they graduated they would get a guaranteed well paid job. As it is, you can bumble through any old degree for 3 years, get a 2:1 and end up getting an easy grad job that pays £5k more from the start with significantly better working conditions.
I also find it a bit rich in this thread when there are people probably getting paid 50% more than their public sector counterparts for an equivalent job, and the worst they have to worry about is a server going down at the weekend.
£22k as a highly skilled professional to work 60 hours a week, alternating days/nights with pressure from patients/management/the public, no thanks. There are no private sector jobs like that.