Dear Bill:
While I concur with all of your views, you failed to mention the tenure system for teachers in the public school system.
In the Parochial system, if a teacher exhibits many of the non-chalant, do not give a darn attitude prevalent in many, many public schools, they simply will be finding a new school to teach in.
Also, I would not describe the parental involvement of private school children as "intrusive", I prefer to believe we are more concerned and engaged.