Let's be real, Stanford could fill it's entire freshman class with kids who got perfect GPAs and perfect SAT scores. That's not the deciding factor. You mentioned doing well in State level competitions but the elite schools of the US, Ivy+ etc, are the best schools on the planet. It's not surprising that you didn't get in given that fact. Their freshman classes are full of State Champions, National Champions, Olympiad Winners, Intel Science Fair winners, Published Authors, kids that have given concerts at Carnegie Hall, etc. I think you may have misjudged the level of competition. It's not 1940 when a perfect SAT got you into any school you wanted.
>This was the only piece I felt differently on. There's a significant advantage to attending a top school - the alumni network and a generally stronger and more well-connected student body for starters. Going to a state school didn't necessarily prevent me from finding success later in life, but I definitely took the long way around.
People have studied this and found that students that were accepted into elite colleges but ended up going to lower ranked schools had equivalent levels of achievement after graduation. So it turns out graduating from Harvard isn't as important as you think. Unless you want to go into IB or Big4 Consulting.