Top notch hospital system that covers 5 states, top notch cancer hospital, etc etc etc etc.
This is all dumb anyways - if you are good at what you do, you’ll be successful no matter where you go to college.
BYU, as a private institution with cheap tuition for its members, is going to self select more academically motivated students.
For comparison - the Ivies select from the best students in the nation…obviously they are more likely to be successful in life.
The individual will always play the biggest role in how successful they are in life - Bill Gates is going to be mega rich going to BYU, USU, Utah, Dixie college, etc.