Does malfeasance mean deliberate wrongdoing?

Does malfeasance mean deliberate wrongdoing rather than incompetence?

Yes. The term is accepted as describing deliberate wrongdoing, distinct from simple incompetence.

Malfeasance is treated here as deliberate wrongdoing rather than mere incompetence. The question follows the removal of the aviation section's previous chief for failing to discharge his obligations. Prominent advocates such as Mitchell attract scrutiny from opponents, making misconduct especially damaging when it becomes public. Opposition to an officer's views does not, by itself, answer an allegation about that officer's conduct.