A little harsh Gertrude the Wombat!
Medical students don't get 100% in their exams and we let them practice medicine. ATPL students don't get 100% on their exams and are allowed to fly 400 people around the sky.
If the licencing authorties et al. had statistics that pilots with less than 100% in exams were consistently killing themselves and others more than those few (if any) who aced every exam then we might see pass marks of 100% in all examinations laid down. We don't.
I'm not sure you can accuse someone of having the wrong attitude to flying by a half-dozen word statement along the lines of "Phew! I passed my exam!"
Did you get 100% in every PPL exam? If so, then well done and good on you, but you'd be in the minority!
I see your line of reasoning that this stuff is learned for a tangible reason and not just as an academic activity and you're absolutely right but your comments to Chequeredflag are a little melodramatic.
My humble opinion,
V1R