As for me why bitcoin a better payment system in financial system ?  Because bitcoin is a decentralized, peer-to-peer, "cryptocurrency" system designed to allow online users to process transactions through digital units of exchange called Bitcoins. Beside that in the Bitcoin payments are processed through a private network of computers linked through a shared program. Each transaction is simultaneously recorded in a "blockchain" on each computer that updates and informs all accounts so Bitcoin is better payment system  than others payment system.