As long as the beneficial rewards of all parties are high enough to keep the blockchain running it would be enough.
Most first usecases will probably governamental. It is for the governments important that for instance the people administration is stable and secure and for all the companies that need to use this data, that they have direct access to it, without having to copy large chuncks of data to their own databases. In this case all parties benefit from such a blockchain to keep it running.
Via smart contracts the governments can grant access to the blockchain and even retrict which data which company is allowed to see!