ethical leadership

You have read about some of the issues creating ethical dilemmas and challenges. You also read about the impact of ethical failures and several ethical perspectives/philosophical approaches (e.g. Utilitarianism, Virtues, Care, Duties, Golden Rule).

What has been your experience dealing with and observing ethical challenges and the related impact on leadership?  Have you observed others apply one or several of the ethical perspectives and encounter difficulties? Do you believe there is a lack of ethical leadership in our society