It was a very lazy environment and I felt like teachers "fixed" marks so the school looks good. The yearly fee was $20,000 and most of the people who graduated from my class, ended up being nobody or just taking over their family businesses. Also, my parents had friends and their both kids went to very prestigious private schools in Toronto, the boy went to all-boy school in Aurora, very expensive. He would tell me how all the kids would organize car racing with their dad's porches and maseratis and if you would want your kids to be in the inner circle, that is what yur child would have to drive. I surely would not fit in with my brand new Mazda Protege at the time and was considered a "poor kid".
I must add that there were 20% of students that truly were there for education and most of those 20% came from parents who were not rich so I guess that was the motivation for those kids making sure to wisely use the opportunity. But I think those kids would have done just as well in any school. My 2 cents and just personal experience