What was the scotch half breeds personality call of the wild?

In "The Call of the Wild," the Scotch half-breed is depicted as a ruthless and cruel character. He represents the harsh realities of the Yukon during the Gold Rush, treating the sled dogs, especially Buck, with brutality and a lack of compassion. His primary motivation is profit, often prioritizing his own interests over the well-being of the animals he exploits. This character contrasts sharply with Buck's journey toward instinct and freedom, highlighting the struggle between civilization and the wild.