DFC - If life was a simple as you suggest.
The JAR PPL syllabus does cover all your suggestions. The NPPL is somewhat more limiting in its scope. Either way - unless the industry can withstand a further burden on its training costs, as depicted by CAA/JAR legislation - why the hell should an instructor ensure his/her students are all trained to your professionalism?
It simply ain't gonna happen. Accept that this ideal world of yours is also occupied by lesser mortals than yourself who when the SH one T hits the fan - all your ideals get chucked out the window.
Remember this is a recreational sport as much as a profession for some.
Can't we just live with each other for once? You have the ultimate skill and cool head to turn the volume down when it gets on ya wick - a low houred PPL is not as good as you.