Kaddo's death at the end of "Kaddo's Wall" serves as a crucial development in the theme of the story, primarily highlighting the consequences of selfishness. His demise illustrates the idea that Kaddo's inability to share his wealth and resources ultimately leads to his downfall. This reflects a broader commentary on the nature of generosity and the interconnectedness of individuals within a community.
By portraying Kaddo's death as a direct result of his selfish actions, the story emphasizes the importance of altruism and communal support. It contrasts Kaddo with characters like Sogole, who may embody more virtuous traits, reinforcing the notion that community and sharing are essential for survival and harmony. Kaddo's fate serves as a cautionary tale about the dangers of isolating oneself and hoarding resources, suggesting that true fulfillment comes from contributing to the well-being of others rather than succumbing to greed.