Why is the gang important to Johnny?

Also, the gang protects Johnny.  When he was beaten up by the Socs and left almost dead, the gang were the ones to find him and the ones to care for him.  From that point on, they look out for him.  They prevent each other from doing anything to hurt Johnny's feelings.  Dally turned on Ponyboy, hitting him, when he angrily yelled at Johnny.  Also, they make sure that Johnny doesn't go anywhere alone so that he doesn't get jumped again.