Which of the following scenarios does NOT allow a lawyer to reveal client information due to a conflict of interest?

The scenario in which a lawyer has a financial interest in the outcome does not allow for the revelation of client information due to a conflict of interest. The ethical rules governing lawyers emphasize the importance of maintaining client confidentiality and trust. When a lawyer has a financial interest in the outcome, it creates a significant conflict because the lawyer's personal interests could potentially taint the representation. Lawyers must avoid situations where their own financial stakes influence their advice or actions regarding the client’s case.

In contrast, scenarios that involve a client intending to cause substantial harm or intending to kill someone create exceptions to confidentiality. In such extreme situations, the lawyer may have a duty to disclose information to prevent serious harm to others. Additionally, when a client seeks legal advice on future actions, unless it involves illegal or harmful activities, the lawyer is generally not permitted to disclose client information and can advise the client appropriately without breaching confidentiality.

Therefore, the correct answer underlines the principle that a conflict of interest rooted in a financial stake does not provide grounds for revealing client information, thereby protecting the integrity of the client-lawyer relationship.