I don't know why you think "Blue Apron" and "Trello" solve real problems but that, say, Intel, Cisco, Seagate, Oracle, Adobe, NVIDIA, HP, and Google do not. That sounds, well, crazy. Adobe alone singlehandedly changed the nature of publishing in the U.S. Google revolutionized search. Intel made huge advances in CPUs. Oracle pioneered relational databases. Cisco pioneered routers and firewalls. Seagate made huge advances in storage. HP had enormous impact in research, operating systems, personal computers, printers, services. SUN invented java. Netscape invented the modern web browser (image tag + javascript + cookies). There's a little impact there, no? The list goes on.

Your opinion is really baffling. The impact on real world problems made by SV tech companies vs NY tech companies -- they're not even in the same universe of relevance. Look NYC dominates in publishing, in art, in finance. It's a great city. But it's a pimple on the butt of SV when it comes to tech.