When you're so keen on a startup that could literally influence people and contribute towards computer science, the ideas which looks for long term benefits are the real game changers. Elon Musk falls under this category. He's a great visionary, who saw a better future, life for humanity. He wants everyone to do the same, that's why he has made all his patents open source, so that others come forward with better solutions to build a better world. But Zuckerberg is on a different side. He build utilities which are not of long term benefits, but offers temporary advantages. Oculus rift are one of those which takes time and ideas away from us.