The SAT/ACT prep school industry is a thing. I grew up with many, many kids whose (wealthy) parents sent them to SAT prep summer school every year from age 12 to 17.
Oh for sure. But there's also a huge industry for private tutors, homework help, writing help, etc- which more directly translates dollars to GPA points. My thinking is that the translation between dollars to SAT/ACT points is much less than that.
