The quote examines the cyclical nature of power and ambition. It illustrates how a satisfied individual, having gained success and honor, is eventually supplanted by someone who is more driven and desperate. This transition suggests that complacency can lead to one's downfall as those with less to lose are willing to fight harder for the rewards.
In this context, the imagery of the dogs serves as a metaphor for human behavior within societal structures. The sated dog represents those who have achieved their goals, while the hungrier dog symbolizes those who seek to succeed at any cost. The dynamic illustrates the relentless pursuit of ambition, where the once powerful can quickly become obsolete.