We very often confuse personality with leadership.
Quality effective leaders have the confidence to trust others to try, succeed, and sometimes to fail. We very often confuse personality with leadership. In other words, leadership is not about being a nice person or not a nice person.
Notoriously outspoken, his sentences always punctuated with profanities, General George S. Patton was the epitome of what a leader should be like - or so he thought. Patton believed a leader should look and act tough, so he cultivated his image and his personality to match his philosophy.