The stepped-up requirements for college do a pretty good job.
In the free-thinking 1970s, I grew up in a university town, my parents were both grads, something like 25% of the student body had university faculty for parents, the HS was world-renowned.
I absolutely smokin'-aced all the placement tests (we took batteries of them in 6th and 10th grade), 99th percentile, and some counselors told me, "You could get into Hometown U. right this minute with something like a 3.0 GPA."
So I graduated from Hometown High with "something like" a 3.0 GPA (cough cough). I 4.0'ed a few classes when I felt like it, but most of the rest of the time I just partied. And yes, I breezed into Hometown U without a sweat.
It's now 40 years later and my nephew is also going to Hometown High, still a very well-rated HS, and he has also aced all the standardized tests. However, he has been told (and mom and dad and even Uncle Star have checked it out) that for him to 'breeze into' Hometown U, even with ace results on the college boards, he is now going to need a 3.6 or better.
And that's to GET IN. To get any kind of scholie, or to other, better schools, he'll have to be a lot better. College costs roughly 10 times what it cost in my day, so a scholie would really help.
Midway through his sophomore year, he's still pulling a 4.0.