Harvard has around 1000 admissions spots in any year. I think there are roughly 30,000 people who score a SAT 2200+ in a given year. Say half of those a have A level GPA. At that point there's more significant non-academic differences, than academic differences.
I think we would agree that non-academic considerations are important. I wouldn't say that academic performance is a disqualifier, which makes it sounds like there's an inverse correlation between academic performance and success.