BECAUSE HE WOULD FORGET HIS KINDNESS AND HARM HIM.
Because if he didn't rescue the man he would haved died.
He was a kind and caring man. he had pity for the man.
I think he rescued the man anyway because he could not think of anybody dying like that because it is a horrible way to die. .
Because he was nice and probably would not let himself leave a man of his oun race die and rot in a pit because of himself. I know that I cartianly would feel that way!