The "quality factor" of elite degrees has little to do with the education and a lot to do with
who you can network with. Consequently, people think Harvard is the place to go not because they think Harvard grads have the prestige of being particularly smart (like say MIT grads have for CS or Julliard for music) but for being particularly well connected - something that everyone else has to bust their hump to build up happens by default at a place like this.
If the startup community (and well established, famous former startups like Google) only recruited from state polytech schools, those would be the hot schools to attend. Consequently, no-name schools like New Jersey Inst. of Tech would suddenly be full of startup minded people.
If those schools suddenly started charging $50k/yr for tuition and boarding (instead of the in-state tuition), that would select for people with money or access to money.
Make the admission process highly competitive and selective (GPA >3.8, SAT >1400 or parents donate a library wing).
Now NJIT is full of startup minded tech people with money. Add that up and you achieve the same thing that Harvard does for MBAs and Lawyers. Well connectedness with people who have the means to approach and achieve what they want.
There is no doubt that the education one receives at these places is also adequate to the task. Otherwise money, connections and no brains results in dumb ideas like Internet connected toasters and Flooz.com