Responsibility is important in teaching accountability and ownership for mistakes as well as achievements. Responsibility at the personal and business level is a large factor is a measure of one's maturity.
Parts of maturity include being sensitive to other's needs, anger management and selflessness as opposed to selfishness. When one is an infant, he or she is truly are the center of the universe. As a person grows, matures and becomes responsible, he is no longer the center of the universe and must be accountable and responsible for his own actions. A person is generally responsible for his own actions, attitudes, choices and behaviors. Personal responsibility extends to the corporate level in good business practice, as well.