The theme of the poem "Landscape with the Fall of Icarus" by William Carlos Williams is exactly that, the Fall of Icarus. This theme was explored many times throughout many major works, however here it is explored as a background image, not noticed by hardworking people in the sun. Icarus falls and drowns, and nobody bats an eye.
The metaphor for life in this poem is a game of Monopoly with no winner. The poem describes a situation in which, through the process of trying to beat out the other competitors in the game, no player ultimately wins (see the "Crabs in a Bucket" metaphor for a similar idea).