According to one prosecutor, the reason professional misconduct takes place is because "it works." which ethical theory would support such misconduct?

It is the Utilitarianism. Utilitarianism is extraordinary compared to other known and most powerful good speculations. Like different types of consequentialism, its center thought is that whether activities are ethically right or wrong relies upon their belongings. All the more particularly, the main impacts of activities that are important are the great and awful outcomes that they create.