Money
Money's reach is genuinely universal. There exists no inhabited corner of Earth untouched by monetary systems. Even communities that reject currency find themselves defined by that rejection, measured against the monetary standard. The US dollar's fluctuations affect farmers in rural Bangladesh, textile workers in Vietnam, and coffee growers in Ethiopia simultaneously. Digital currency flows ignore borders entirely, moving $6.6 trillion daily through foreign exchange markets. Money has achieved what no empire could: total global penetration without physical conquest.
Volcano
Volcanoes number approximately 1,500 potentially active specimens worldwide, concentrated along tectonic boundaries in a distribution that leaves vast regions entirely unaffected. Whilst supervolcanic events can influence global climate, the direct impact radius of even major eruptions rarely exceeds a few hundred kilometres. The 2010 Eyjafjallajokull eruption disrupted European air travel for weeks, demonstrating volcanic capacity for indirect global reach, yet most eruptions remain local news, their ash plumes a concern only for immediate neighbours.