Yep, that has been my experience. When I was in high school, in an accelerated/advanced science/math program, most of the kids were cheating on their lab reports. I had one teacher, in biochemistry, who really taught me the value of personal integrity. Most kids that was lost on, unfortunately. Surprisingly enough that lesson is what taught me to rely and adhere to principles, rather than doing whatever it takes to get ahead - I may not be rich, but I'm happy with who I am as a person.
Perhaps not coincidentally, the kids who went on to mostly cheat became ardent socialists, and I wound up an ancap.