The psychological disorder you are referring to is called "Antisocial Personality Disorder" (ASPD) or, in some cases, "Dissocial Personality Disorder." It is a personality disorder characterized by a persistent pattern of disregard for, and violation of, the rights of others. People with this disorder may have difficulty distinguishing between right and wrong or have a diminished sense of conscience or empathy.
Individuals with Antisocial Personality Disorder may engage in a wide range of harmful behaviors, such as lying, manipulation, impulsivity, aggression, and a disregard for the law and social norms. They may also show a lack of remorse for their actions and have a tendency to rationalize their harmful behaviors.
It's important to note that the diagnosis of Antisocial Personality Disorder should be made by a qualified mental health professional based on a comprehensive evaluation of the individual's behavior and psychological history. Additionally, this diagnosis should not be confused with a single instance of making an ethical mistake; it involves a persistent pattern of problematic behaviors over time.
It's worth mentioning that people with other psychological disorders or conditions, such as certain types of neurodevelopmental disorders or brain injuries, may also have difficulties with moral reasoning and understanding right from wrong. In these cases, the underlying cause is different from Antisocial Personality Disorder.