I think nobody can control or own the bitcoin system like they can not control and possess the technology by email and the internet. I think Bitcoin is no different than a mobile application or program that offers a personal Bitcoin wallet and allows users to send and receive Bitcoin.
no one system can control bitcoin. i think bitcoin control by the community bitcoin user itself. even the government of a country can not control bitcoin because I think bitcoin is created only as a digital currency. of course you know some countries forbid the use of bitcoins but can not prevent all bitcoin users in the country to make transactions