How does this picture capture the theme of the essay?

The theme of the essay is change is not necessarily achieved through large gestures, but by small changes everyone makes. This picture shows exactly what the theme is about. The writer of the essay, Allison Howard, suggests that change in society is not necessarily achieved through large political gestures or by those in power, but by small ‘infinitesimal’ changes that individuals can do every day in their lives. Even if everyone only do a little bit, it will help.