I want to be able to pay a single lump sum to have a "digital safe deposit" of sorts. A physically secured file server with guaranteed data integrity over the length of my life that is encrypted in a way which guarantees I am the only person that ever has direct access. Instead of releasing all of your photos, videos, messaging, etc. to random third party companies that will come and go, you could build a safe repository of your entire life's data output. You could then allow API access to this data to any service you wished, under as strict of terms as you wish. These services would compete on the basis of security and customer service, rather than advertising eyeballs.
We sort of have this model with things like Facebook, but the incentives are corrupt because Facebook makes money by spreading your data, rather than making money by protecting your data. It's going to take a rethink of the entire system. It almost seems like there's a need for a government service to handle this.