For the most part I can agree with that statement, simply because a lot of the people in high school who I recall doing really well I haven’t kept in contact with since.
A girl I graduated with received a 1510 SAT and 34 ACT accepted into MIT, blah blah blah. Failed out first semester, came home to the local college to become a high school guidance counselor. Yet a few of my friends in highschool who were average around 1100-1300 went on to some impressive careers.
It’s just a test with a number to help some college board justify the reason to give you a scholarship. When in the end it boils down to the person who actually has a desire in life to achieve better rather than let a test tell them they are better.