Exactly. i remember on an Aztec charter meeting a PPL at Prestwick once who had just flown in from Bham but unlike me VFR. He thought I was a bit of a hero because I had flown up the airway in a twin with the autopilot engaged most of the way. I pointed out that it was in fact he that was the hero and had shown far more skill by navigating VFR over an assortment of terrain etc without an autopilot just reading a map in a SE a/c.
Most PPL flying is much more demanding than than its equivalent professional flying in protected airspace with ATC helping at every stage and so demands a totally different instructor with a different level of knowledge. I think anyway.