The Brits, for all their faults, are far more pragmatic about aviation matters than Australasians (yes, I include my fellow Kiwis). They hire on the basis of qualification, not on the basis of arse-licking ability.
Regrettably Remoak old son, I have to agree with you
Difficult Captains can be dealt with in a number of ways.....
Here are a couple of techniques I have used on ex mil, or big airways drivers..
"Is that right? are you sure? are you reaaaaaaaaaaaalllY sure?!
"Oh ok............but thats not what Mr Boeing test pilot says"
"I thought this was my sector"
"Trust me, I can almost walk unaided

"
Or for after the flight.....in the Bar
"do that again and I'll knock you effin block off....CVR or no CVR"
"I don't care if you've got 5000hrs command in a saab340 flyin around ulllleroooo, your still an arrogant tw@t"
Just a few that may or may not help, all have worked to varying degrees for me