In what way does Jim defy or embody traits of a caricature, and why is this portrayal significant?

Jim has the stereotypical vernacular of a slave during these times. He conforms to the caricature of the "superstitious negro" who mixes Christianity with old world African traditions. On the other hand, Jim is an empathetic friendly person with his own unique perspective on life. He is loyal to Huck, a white person, because he likes Huck and Huck likes him.