If your mental model is that blockchain networks are like highways, blockchain companies are more like carmakers (for example, you need a car get on the highway -> you need a fiat off/onramp to get on the network) or construction firms (you need to maintain/build on the highway -> you need contract auditors/devs to deploy your app). If you want to own the highway (I would say you should since it's clear most of the value in crypto has accrued to the protocol layers) you should really own crypto directly.