What makes you think the world isn't? It hardly ever is the best service or product that wins, but the one that sells best. And that is, to a huge degree, marketing. Maybe crap is to harsh, but not the best products? I certainly would sign that sentiment.
You are perhaps too optimistic. Just heard a scooter start up called ‘Unicorn’ went bust without making a single scooter, losing all the money people gave them for pre-orders. All the money was spent on facebook ads. This is the purest application of marketing, where there is no product, let alone a crap one.
