Well, first there’s no wealthy kids.
There’s wealthy parents.
Wealthy parents put their kids into “Beat the SAT” tutoring, which work.
Poorer parents cannot afford to put their kids through the “Beat the SAT” tutoring which make imo the scores of those who did NOT take the Beat the SAT classes more legitimate.
I was a kid who did not take any of the Beat the SAT courses because I did not know they were available (and our family probably couldn’t afford them) but I found out the couple of kids who aced the test _did_ go through expensive tutoring to get extremely high scores, which they did, and they got into their schools of choice.
I did well enough and got into the school I wanted and have no regrets but I certainly felt they cheated at the time.
So that’s all I know about that.