This is an adorably outdated point of view.
Two ways businesses print money: either be unique and capitalize on tiny amounts of large margins or be popular to capitalize on lots of tiny margins.
If it's popular and is profitable people will copy it. It's not that hard to reverse engineer products, most people just don't bother or try. Give me any CPG brand on the supermarket shelf right now and I can show you the supply chain and equipment needed to manufacture and deliver it.
Everything new gets commoditized eventually, especially considering it's all made in China anyways, and trickles through the global markets at various pacing.
That varying speed is the only competitive advantage one has. Your only job is to stay ahead of the game then when the game is boring sell that information to others to replicate. AKA franchising.
Then you keep spinning and spinning until 30 years later you can stand to wait around while others jump into a new market, burn out, and just take whatever you want out of that situation to come up with a new product and utilize your large economies of scale to immediately sell it in your extended network of retail stores that's making more per square foot than Tiffany's.
But do agree with the second part. Silicon Valley is just a giant R&D college campus built off other people's money experimenting on each other's child like sensibilities.