I guess that "its not what you know but who you know" also applies in Poland
Indeed, very much so. Don't worry about the lack of qualifications - Poles pretend to be impressed by bits of paper, but what they're really impressed by is someone who can get the job done - on time and properly.
Sounds like his great education and qualifications hasn't taught him not to be a jerk.
By his constant anti-Brit rants, I'm guessing that he's full of nonsense. The fact that he's previously admitted to working as a Callan teacher tells you all you need to know about him ;)