How has Piltover/Zaun not taken over the world yet?
The level of technological advancement between those two Cities (or one City we're still not too sure of that) completely eclipses any other area so far introduced on Runeterra.
Literally every other location relies off of Spears/Axes/Swords/Katanas to do any of the fighting, granted with a bit a magic sprinkled in here and there. Meanwhile Piltover/Zaun has tech that equals, and in some cases even surpasses, Techology in the real world. How does anyone stand a sliver of a chance? This is like pre-Industrial Revolution Britain vs Modern Day USA. It would be a literal slaughter. It can't be that "they just don't want to expand". That's not how those societies work. They need resources to function, to grow, to further advance their technology for one purpose or another as well as meetig the demands of their consumerist population.
