See I'm confused now because everything ive ever heard, experienced, and had explained to me suggests that all state schools and regionally known privates will deflate GPAs and have solid reasoning for doing so. While ivys, and nationally known privates have incentive to inflate grades. Sports players, who always have inflated grades being the exception in all cases.
It would make me think that the GPA observation you made is not actuallu accurate because it incorrectly identifies who has inflated and deflated grades. Which leads me back to my original suggestion, the school name, regardless of gpa, is a positive factor. If you don't have the school name, you have to make up for that elsewhere, as most people will have the name brand school. This why a given student from a lesser known undergrad who makes it in is more likely (im my unscientific observations) to be a top of the class student than a name brand student picked at random.
P
If this holds true at other places besides tourony, touroca, and umdnj-newark is what will differentiate this as trend instead of an isolated phenomena
Edit: not that my understanding of who inflates and doesnt is intrinsically correct, but its the same grouping and reasoning I've heard from multiple sources discussing the trend. I'm hesitant to believe state schools inflate when I've never heard that before and I've heard solid logic explained for why they should never inflate. I just need to hear the logic for your end (id type mine if I weren't in sign out eight now editing this. Maybe later today)