Cardano will have a governance, voting and treasury model which will be implemented through next year. Users will be able to vote on what changes they want to see on the protocol. IOHK is a developer of the network until 2020 and has designed the network, though in the long term it will be the users that decide on its path.Cardano could revolute the financial services market. However, one must see how cardano is accepted by the broad majority and can establish itself on the market. As the financial services market is one of the largest, if not the largest, market in the world, I see good chances that cardano will take a piece of the cake.