The algorithm would probably be useless to the consumer anyway. I doubt it is as simple as:

0.05 x Income X FICO/850


They most likely include your data from within their databases, number of late payments, various FICO models from different agencies, length of employment, existing balances, existing cards, length of credit history, recent applications, recent inquiries, and on and on.

Look at how many applications get denied instant approval and get bounced to a human to be reviewed. That alone states it is not so easy to have a simple algorithm.

On the ethical side, confidentiality agreements extend beyond employment. You could still be sued even after you quit for releasing trade secrets (not that the risk of a lawsuit should be the only reason to act ethically.)