The difference in talent between Alabama and OSU and the rest of college football is a CHASM. And it will only grow.
If you are a big time prospective medical student you shoot for Harvard Medical School... which picks the cream of the applicants.
If you want an NFL career you want to validate yourself by playing for the Tide, which also picks the cream of the five star applicants.
Link: https://www.ourlads.com/ncaa-football-depth-charts/active-nfl-players-by-college/alabama/89923