There is a lot of evidence that this is absolutely not the case. On of my links in a prior comment indicated there are now many universities that are standard test optional and keep stats comparing the performance between standard test students versus other students to find no difference in performance.

Consider your example. You are a famous developer well known for a performance oriented programming language. Of the many computer science students that graduated from MIT I cannot name any who are as well known for such. It is impossible to say that if your SAT scores were closer to perfect you might have gained admission. Regardless you have clearly excelled where others have not regardless of institution or institutional entry. At the least this suggests the incorrect combination of parameters were assessed given real world performance.

My degree is in Aerospace Engineering, not CS :-)

Though I shamefully admit my lack of academic CS knowledge shows its face now and then. I sometimes find myself reinventing the wheel.