Grade inflation must really be very significant elsewhere if RPI can be described as modest. Looking at stats for hockey players and other athletes which we often see, there has been a lot of grade inflation at RPI. I don't recall a hockey player being on probation in decades. It was a common occurrence when I was at RPI. I suspect that RPI coaching staff looks at a prospective athlete's academic record more than they did 50 years ago, and tutoring is more available, but grade inflation also helps.