Others have explained what Valedictorian means: highest class rank based on academic marks. His father was a basektball coach, mother was a "executive business

Others have explained what Valedictorian means: highest class rank based on academic marks. His father was a basektball coach, mother was a "executive business coach" so likely middle class to upper middle class. That excludes making large monetary contributions to gain admissions (ex. Bush Jr.) It really seems like his admission to Princeton was based on a combination of excellent academic performance combined with his athletic ability which is often a boost for applications in competitive schools like Princeton.