Answer:
Ingli's experiences taught her that even people with warm and friendly dispositions can behave in immoral and manipulative ways.
Step-by-step explanation:
"The Light of Gandhi's Lamp" is a story about how Hilary Kromberg Inglis met her sister Anita's interrogator. Her sister was a white activist who greatly opposed the apartheid. The apartheid is a system that enforces the racial segregation (especially among African-Americans).
Hilary was very hesitant to visit her sister who was detained in prison because she has heard about many bad things being done to people who oppose the law. When she finally saw the interrogator, she was surprised to see that he was a good-looking man. He looked so calm and reassuring about her sister Anita's condition. Hilary found out, later on, that her sister was released and thus, she heard more stories from her. She found out that her sister was manipulated by the interrogator by destabilizing her emotions. The interrogator told her that her brother, Steve (who was also an activist), visited her instead of Hilary. This made her sister very distressed because she thought that Steve risked his life just to visit her.
This situation clearly shows that the people, just like the interrogator, who may have warm and friendly disposition, can actually behave in immoral and manipulative ways.