But the idea of crypto isn't just to work on a blockchain. It's about having public-private keys that you use to issue transactions on a decentralized, permissionless network. For example the Dat protocol / hypercore. What about all the other architectures? Is BitTorrent being centralized and co-opted, for instance? Is IOTA tangle or MaidSAFE or any of the other architectures?
On my dappnode I bought a single 3TB drive to set up Storj. It paid for itself in the first year, now it generates enough revenue to pay for its power consumption and turn a very modest profit. Based on many different nodes just like mine, Storj offers a S3-compatible service at a fraction of the cost from AWS.
PGP has been around for many decades. Not exactly lighting the world on fire.
Its already being centralized and co-opted by the big guys.