Is Satoshi Nakamoto really the founder of bitcoin? Then why he did not show in public? What do you think the reason maybe? He might be a billionaire by now if he showed his true identity in public.
I believe that if Satoshi Nakamoto is not the real found of bitcoin then there are few people that invented bitcoin as an alternative way to send money and decentralized. About not showing his/their identity in public it's ok because lots of money are hold by him/them, and it's a bit risky. I think that after few years when bitcoin will be stabilized they will come up.