Starbuck's character symbolizes the internal struggle between moral duty and personal obsession. He grapples with the ethical implications of Ahab's relentless pursuit, recognizing the dangers and injustices of sacrificing the crew's safety and purpose solely for Ahab's revenge.
In contrast, Captain Ahab embodies obsession, vengeance, and a singular, relentless pursuit of his nemesis. Ahab sees Starbuck's moral and pragmatic nature as an impediment to his quest, often disregarding his warnings and concerns.
The name "Starbuck" in the novel was chosen by Herman Melville for its association with the sea and whaling tradition rather than having any direct relation to the modern coffee chain.