This! ^
And if things change AFTER you have started any given career, (like if you're a Pharmacist, and the MAP is now available at a pharmacy, and your religion forbids dispensing it,) then change careers! Can't fulfil your role properly anymore? Don't do that job anymore!
I used to know several people who were born in the 1940s or 1950s and worked in offices (in admin and secretarial,) and also in shops, in the 1970s and 1980s, and early 1990s. They worked with typewriters, and manual tills, and when computers became the norm, (late nineties/early noughties,) and also computerised tills (that are basically computers!) they couldn't use them OR they refused to learn to, and they wanted to stay with the old things.
They were pretty much told if they don't adapt they need to leave. I know this is a different scenario, but it's similar. People going into a career or job that has certain things/criteria, and things change, and they won't/can't adapt to it. If they can't do the job properly anymore, then they need to leave, and move into another job. And that includes Pharmacists ...
Pharmacists who run their own practice who REFUSE certain meds - like the MAP - because of their religion, need reporting to the General Pharmaceutical Council. They should not be in the job if they can't fulfil the role properly.