Self-approval leads to a road of sadness. For example, a theoretical company needs to self-renew an ssl cert. No problem, the cert will be stored with the rest of the secrets and retrieved in a secure way on deployment. Unfortunately if you don’t store the cert key in a secure way, the deployment still works fine and you don’t need to figure out the “onerous” encryption process.
So you push the private key to the company git repo, and then deploy the cert! Done and Done.