A left field suggestion - he should look for work with a startup in the medical field.
There are some very good opportunities for this generally. I think though that he'd be hampered by a lack of Polish language skills and a lack of connections. Most of that sort of thing in PL is done by doctors who want to give up medicine for something more lucrative, like sales. It's also very competitive and capitalistic too.
There's always alternative therapies (Poles are suckers for this sort of thing), however there's the language issues again, along with the market for this being in the larger cities - a long way from his rural idyll.
I don't know where this "family values" thing is coming from, though.
I've wondered the same. Poland may come as a shock to him, when his neighbours on one side have swinger parties, his neighbours on the other side hold pagan moots in their garden and the two women opposite both transition into men.