They aren't any goody two-shoes boy scouts wanting to right all the wrongs in the world. They are neutral and always doing what they want to do personally, getting stronger in the process. That's a good thing about them. Sure, very often they end up fighting the bad guys, but that's natural since bad guys themselves end up fighting anyway, including other bad guys, not only heroes. Gon simply has a few principles he honours, but that's it. Otherwise his only goal is to meet his old man and hang around with his friends. It's quite refreshing shounen wise that he's not there to judge people like Genthru, jamming his own values down everybody else's throats.