>academic skills have no bearing in getting high paying jobs
This is a big part of it. Let's look at what "academic skills" means specifically in the US:
- you perform well on standardized tests
- you perform well on rubric-graded essays
- you do all of your homework, and you get As on every assignment
this leads to:
- you get into a good university
- you (presumably) perform adequately or well at said university
Every student who performs well academically has a similar path to this point, but then there's divergency.
Tech is the only top tier job where your educational pedigree is not going to hold you back throughout your entire career. It's not going to hurt to have a degree from a top school, but it won't cripple your opportunities, unlike finance, law, and medicine.
Based on how top tier tech companies hire for engineering positions that aren't internships, it seems that they do not see a link between academic performance and engineering competency.
I agree with the approach taken by said companies. Thus (imo) for tech, it is fully expected for there to be no correlation between academic performance and representation in the top tier of jobs, because tech is the most meritocratic top tier industry. It's obviously not perfect, but it's leagues ahead of the other big industries.