But traditional/non-SV companies can and do change the world with products all the time. IBM was a massive company when they created the PC. VW invented the beetle (and reinvented it). Vanguard changed the world of investing.

None of these were SV startups with all the stereotypes that accrue to them. It's true that it's harder for big companies to innovate, but you can't say, "Only SV startups build products that change the world, ergo SV startups change world culture"