The fiduciary duty is taken pretty broadly and with a long-term perspective, however; courts don't generally second-guess strategic decisions. For example, Musk

The fiduciary duty is taken pretty broadly and with a long-term perspective, however; courts don't generally second-guess strategic decisions. For example, Musk could plausibly argue that the company's long-term reputation with its target audience depends on being seen as brusquely honest. A court is typically not going to get into trying to determine if that's true or not.