High school is not particularly G-loaded, it rewards conscientiousness far more. That says more about how high school is set up (busywork, non-time-bounded eff

High school is not particularly G-loaded, it rewards conscientiousness far more. That says more about how high school is set up (busywork, non-time-bounded effort signalling games via extracurriculars, rewarding reaching thresholds rather than exceeding them, rewarding generalism rather than specialization, etc), than the general usefulness of intelligence vs conscientiousness.