I could remember when I was teaching, I had passion for teaching kids so I would put in all my sweat. Yes my salary wasn't indicative of it.
I thought I had the same mindset that if anything goes wrong with me , I would be Replaced ASAP till I met my friend, a doctor who had some issues and he left his patients just to Rest.
He said his patients didn't die and he was able to catch up with them the next day.
Inasmuch as we display loyalty in our places of work by putting in the best , our self should be priority
That is a good point. Self care is very important and going the extra mile at the expense of your health is probably not a good idea.