Unfortunately, no, this is not just a monohull thing! Cat sailors are also quite susceptible to the "holier than thou" mindset.

I've had pro/coached teams use intimidation tactics against me during major Tornado events...including being screamed at to read the rules on port/starboard crossings (me on starboard); being told not to park under a boat on a starting line etc etc.

And it's not just these elite teams...had a less than pleasant experience at a recent local event sailing as the odd boat out in a fleet of F18s.