Blimey, how far off-topic can this go?
TB, I find it hard to believe that anyone thinks of our cuddly moderator as 'arrogant'. There are several descriptions that come to mind (eg, 'beer monster' and 'recovering scouser'

), but not arrogant.
Back to the subject:
What I find interesting about this debate is that some instructors are
so professional that they simply cannot believe the behaviour of other less scrupulous people. They have worked hard for their gold stripes and cannot countenance the fact that, despite all the regulation and red tape, standards really do vary appallingly in the industry. I'm sure there's a name for this syndrome - I know it's been observed and documented in other fields such as Medicine and I.T..
Just my 2d worth.