In years past that lack of airmanship and respect for other pilots would have been knocked out of a pilot at the 'single' stage of their career. Unfortunately this arrogance has been allowed to build as the more experienced twin drivers that were mentors to the single drivers were rapidly sucked up into the airlines.
As a result of this rapid progression many years of airmanship that where built up and passed along by these mentors to the younger pilots was lost, and the drivers now in the twins think that they know all. Then again, they must, they only did 600hrs in a 210 before they got put into their first twin. Everyone before them had been doing 1500+hrs before they got their chance to look at a baron, let alone those high performance pa31's and c402's.