This is one of the best reasons to start a startup: Because no mainstream company believes in the product category yet, and you know that the product category needs to become huge in order for civilization to advance in the direction of self-sustaining and space-faring.
This is why I started a computer eyewear company http://epiphanyeyewear.com (before Google Glass!). I have spoken with the world experts on Volumetric 3D display tech (such as the amazing Dr. Kurt Akeley of Lytro), and it is evident that a display as realistic as physical reality can be built with today's technology. I am determined to make this happen, and I know it will revolutionize education, human augmentation, and also energy-independence (we will have to construct and transport fewer physical things when we live in a virtual world).