I havenīt noticed any change in behaviour in anyone from any of the many CRM refresher courses I have attended. Idiot captains remain idiots, and the rest already have a well developed common sense, so why bother with the waste of time and money?
Amen to all that. CRM is just another cottage industry except a lot of people make a lot of money by writing thick manuals on the subject. Another cancer infiltrating the aviation society is TEM or Threat and Error Management. A major airline I am acquainted with now has its pilots commencing the typical take off safety brief with: "The Threat is the thunderstorm 10 miles ahead. Error management is we turn the radar to 15 degrees tilt up and I want you to monitor the radar for any trouble looming".
Or how about "The Threat is hot coffee. Error management means wait till it cools before drinking it..." For Christ's sake - who the hell originates this verbose rubbish? University of Texas, no doubt.