"The difference between non-coercive (private) entities and government is that non-coercive entities adapt better."
it's not clear if you are equating non-coercive with private entities. If so you are very much wrong.
Private companies have killed, enslaved, tortured, kidnapped, etc. There are a tremendous amount of examples of private companies being coercive.
As to ratings agencies, some spectacularly demonstrated 3 years ago that they can fail and be captured (akin to regulatory capture) by other private entities.