The reason people don't do that is because VCs can't fund that. Disintermediating or removing the middle man means "you can't make money from this". Well your shares don't have value anyway, you as an individual might make some money though.
VCs tried to fund a bunch of dreamers decentralizing and modularizing everything in their blockchain apps. Many organizations conduct ICOs or token sales so they are able to secure funding in their one-time revenue event, and bring the product to the world. Is it a panacea? Nah. It is very Machiavellian and we'll see this evolve very quickly into something more efficient. But we aren't stuck in the limitations that require companies to become the same toll-taking middlemen as before.
I believe the current system is already over saturated and the online players Amazon, Apple, Google, Netflix, Tencent, Alibaba, Facebook and Microsoft are already encroaching on each others territories.
Also a lot of the companies already posses powerful network effects and product synergies that make the entry of newcomers almost impossible. I'm force to remember every time I see a new VC investment that the purpose of VC is not to make the next tech giant like a Microsoft but to rapidly make a exit.
I'm really sad by the current investment in tech but perhaps the real investments in disease treatment/space exploration are being ignored by the mass media.
VCs tried to fund a bunch of dreamers decentralizing and modularizing everything in their blockchain apps. Many organizations conduct ICOs or token sales so they are able to secure funding in their one-time revenue event, and bring the product to the world. Is it a panacea? Nah. It is very Machiavellian and we'll see this evolve very quickly into something more efficient. But we aren't stuck in the limitations that require companies to become the same toll-taking middlemen as before.