This is no coincidence. For example, areas of the brain that participate in motor control send more information out to execute its commands than do areas involved in vision, which receive more information than they send out. Areas that perform the same tasks use essentially the same types of cells. In general, information tends to flow from the back of the brain to the front. The brain expends most of its energy packaging sensory input from all available modalities into a coherent view of the environment.
Vision is combined with somatosensory information to give a sense of where one's body is in space.
Memory functions in the temporal lobe allow for recognition of the visual perceptions. The processed sensory input finally makes its way to the frontal lobe where decisions are made regarding the various stimuli.