How Are Ethics a Part of Leadership

How are ethics a part of leadership?

A) Unethical leaders may use their charisma in more socially constructive ways to serve others.
B) Transactional leaders have been described as fostering moral virtue when they try to change the attitudes and behaviors of followers.
C) Ethics are used when leaders give themselves large salaries while they lay off employees.
D) Trust explicitly deals with the leadership traits of honesty and integrity.