If IQ is the best predictor of success in life, why has IQ and IQ scores gone undercover but not high school transcripts, and SAT and ACT test scores?

If IQ is the best predictor of success in life, why has IQ and IQ scores gone undercover but not high school transcripts, and SAT and ACT test scores?
If IQ is the best predictor of success in life, why has IQ and IQ scores gone undercover but not high school transcripts, and SAT and ACT test scores?
Post Opinion