

Sure, many jobs require people to use unethical, but legal tools and methods. I used to work somewhere like that - and what ever OS they had installed was irrelevant because it was their equipment, their systems and I didn’t use work stuff for personal things.
But really, are you describing someone dependent on a job or someone dependent on certain windows-exclusive applications? Are they forced to use their personal equipment for work stuff?
I think it’s a rather human thing to do, explaining oneself when refusing to lend a hand. I also think warning friends, family and those I care for about what I consider dangerous to be quite nice.
I suppose we just have to agree to disagree about how we interact and care for our fellow humans.