He only goes around saving people lives. In his most recent interview, Oda said Luffy likes saving people, as well as that he is a hero. Despite luffy calling himself not a hero, all his actions are heroic. Luffy is the only pirate that does not kill. Every other pirate has got kills under them. He hates other peoples freedom being taken away and wants to share his freedom with other people according to Oda. Luffy is purehearted and good basically. He has never killed and will never kill because he believes killing people are wrong. All the other strawhats except Chopper, and Ussop are dark. The other strawhats enjoy killing people because they are real pirates. Luffy is not. Oda interview https://opforum.net/threads/eiichiro-odas-second-interview.86678/ Would love to hear your thoughts?