Who is the person that says, "No Jack, this is a dumb idea and a total waste of resources." For all Amazon's flaws, at least they're solving real-world problems

Who is the person that says, "No Jack, this is a dumb idea and a total waste of resources." For all Amazon's flaws, at least they're solving real-world problems. I mean you can fly around in a $10B/year fairy tale land but there are still many unsolved problems that don't require a blockchain.