Same for OIDC (and even traditional SAML SSO).

If every stolen or potentially stolen credential was billed to the breached provider at even $100/account*, SSO would become free so fast your head would spin.

Every credential in the provider's DB would be correctly seen as a liability.

* Arguably the number should be higher and contribute to a infosec response, detection, and preventative measures warchest. Though, ultimately, this would probably just enrich cybersecurity insurance firms.