We examine the ethical actions of engineers within complex organizations through the lens of the 2023 Titan submersible disaster by exploring how engineers confront safety concerns, even within systems that suppress dissenting voices. Drawing on testimony from the US Coast Guard’s Marine Board of Investigation, we review the actions of three OceanGate professionals who identified critical risks in Titan’s design and operation. Each embodied engineering professional values by acting within their professional competence, raising evidence-based concerns, and proposing practical solutions, but their warnings were dismissed. Integrating insights from high reliability theory, and the literature on engineering ethics, and whistleblowing, the chapter highlights the complex interactions between social embeddedness and values-based decision making that drive experts to move from being insiders focused on organizational learning to becoming organizational outsiders. The Titan case illustrates that system reliability can be enhanced by engineers who speak up, document concerns, and preserve the integrity of their profession even when organizational culture resists learning.