How organizers have used fashion to give visual currency to different sociopolitical movements. Throughout history, organizers and protesters have used clothing to give visual currency to different sociopolitical movements around the world. Some wear uniforms and some dress to express their individuality.
It improved communication a lot not and enabled people to save money on transportation (its easier to call someone than write a letter and make someone on a horse ride for miles) not sure about the effects on power though.
One of the reasons why some leaders believed that unicameral legislatures created more democratic governments was because bicameral ones often led to gridlock and political hardship. Hope it helps