You can't do virtue signalling unless you have virtues to signal...
Knowing that the vaccine;
- Reduces infection, meaning that you are available to do your job and not isolating
- Reduces symptomatic disease
- Reduces hospitalisation, freeing up NHS resources
- Reduces mortality so there's a good chance they will come back to work
- Reduces transmission, making society safer as a whole
You would have to question someone working in the healthcare field who refused the vaccine, putting themselves and those around them at risk