what does miss maudie tell jem he's wrong about

Miss. Maudie tells Jem that there are people who cared about the Tom Robinson case.

Who?" Jem's voice rose. "Who in this town did one thing to help Tom Robinson, just who?"

"His colored friends for one thing, and people like us. People like Judge Taylor. People like Mr. Heck Tate. Stop eating and start thinking, Jem. Did it ever strike you that Judge Taylor naming Atticus to defend that boy was no accident? That Judge Taylor might have had his reasons for naming him?"