[thaumasiotes]

> If colleges only looked at GPAs, high schools would inevitably give in to the temptation to give away perfect scores like candy, and students from schools retaining some shred of dignity would suffer for it.

All three of these things are already happening.

For example, the Cal State University system has purely objective admissions for most campuses. That's good! But while they technically consider SAT scores, the last time I looked the difference in admissions points between a minimum SAT score and a maximum SAT score was roughly equal to the difference between a 2.0 GPA and a 3.0.