The significance of the little man in a short story is quite complex. In many cases, he can be a vehicle for the author to explore themes such as social inequality. If he is a poor or downtrodden little man, it shows how society treats those at the bottom. He can also be a way to introduce a different perspective. Since he is likely not in a position of great power or influence, his view of the world may be different from the more privileged characters. This can add richness to the overall narrative as it shows different layers of the story's world. Additionally, the little man might be a tool for the author to create a sense of mystery or charm. If he has some unique qualities or behaviors, it can draw the reader in and make them more interested in the story.
The little man in a short story can have multiple significances. He may serve as a contrast to the more powerful or important characters, highlighting the power dynamics in the story. Also, he could be a symbol of simplicity or humility. For example, if the story is set in a complex and corrupt world, the little man's simple and honest ways can act as a moral compass. He might also be used to evoke empathy from the readers, as we often tend to root for the underdog, which the little man might be.