How does Jack react when Piggy and Ralph enter his camp in Lord of the Flies chapter 9?

Ralph and Piggy develop personal-friend bonds, Ralph playfully teases Ralph while the other boys condescend him, Ralph is the only boy who defends Piggy however. Piggy stresses that Jack is against civility, which Ralph stands for, Piggy says that Jack holds no regard for Piggy, nor any concern for him.