Hi,everyone! I am Hideaki.
Both Ben and McQueen were highly concentrated on their desires, did not care about their friends, or they thought they could bundle everything as they wanted to do. Ben lost everything, McQueen also spend hard days in the rural area. With those experience, they could realize their mission. For example, McQueen became a hero by helping the old racer. Although I haven't check the last 20 minutes of 21, Ben would behave as a man who fight for justice. I hope so.
In addition,t is not about the question, but the Japanese title of this film was totally different from the film. If I translate it literally, it must be "Bringing Down Las Vegas." 21 is a cool title. However,for foreigners, it must be hard to imagine what the film about?