We know that Satoshi's vision is one of Bitcoin as Money; nothing else.
From the "Bitcoin p2p e-cash paper":
Smart contract, smart property, autonomous agents, distributed markets will be a staple of the blockchain technology whether you like it or not and sidechains are the ideal and arguably most natural way to implement these.
Fine, you're free to do whatever you want. Just don't force the spvp onto the rest of us.