Which leader is a good example of how important losing integrity can impact your ability to lead?

Although the options are not included in this question, we can still refer to examples of leaders who lose their integrity and thus become unable to lead. An example of this would be Aung San Suu Kyi. In the past, Aung San Suu Kyi was admired all over the world because of her work in Myanmar. She was an important political figure and a source of inspiration for many around the world. However, she lost her integrity when she refused to admit that the Rohingya people were persecuted by the government. Because she compromised her principles and was deceitful, Aung San Suu Kyi no longer inspires the world in the way that she did in the past.

sounds good to me mate!