The quote "Every man is a king so long as he has someone to look down on" from Sinclair Lewis's book "It Can't Happen Here" reflects the notion of social hierarchy and power dynamics in human relationships. It suggests that individuals often derive a sense of importance or superiority when they identify someone else beneath them, whether socially, economically, or politically. This mindset allows people to maintain their self-image of being in a dominant position, even in challenging circumstances.

This perspective highlights critical aspects of society, such as prejudice and class distinction. It prompts readers to reflect on how individuals might elevate their status through comparison and judgment of others. Ultimately, the quote serves as a commentary on the fragility of self-worth and illustrates the lengths to which people may go to assert their perceived dominance in a world marked by inequality.