Wielser is a moral man. He has pride in himself as he has always been committed to socialist cause. This film presents Wiesler as a person of ethics. He has principles that he never interrogates his victims rather he has the ability to use psychological techniques to extract answers from them. It is ethical of Wiesler that he does not coerce his victims (French).
Sieland’s career depended on the approval of stagecraft by the state. Hempf used this information to force her to have sexual affairs with him (Rottentomatoes.com).. This part of the film shows how unethical the Minister of Culture was. He was a manipulator and a harasser.
When Dreyman finds out about the sexual meeting between Sieland and Hempf, he prohibits Sieland to meet Hempf again. Devasted and confused with her situation, Sieland ends up in a bar. Wiesler has learned about the true intentions of Hempf. He feels that Dreyman and Sieland have essential goodness in them. Wiesler, having the record of all activities through the surveillance, meets Sieland in the bar as a fan (French). He advised her to be true to herself. This was an ethical step taken by Wiesler. He knew that Dreyman and Sieland were in love and Hempf was manipulating her, so Wielser decided to help Sieland and Dreyman in disguise. Due to Wiesler’s wise advice, Sieland gets back together with Dreyman while she rejects Hempf.