Well they represent the future of America (since we will soon be banning all the Chinese companies, the way Z.ai was banned, under the perennial authoritarian excuse of "national security"; in 2028, Trump's political machine will seize control of all national AI and block outside ones, and we'll all be trapped inside this machine we created).

Whether fortunately or unfortunately, America still holds a lot of global chips in the grand poker game of humanity. So American companies do indeed still have an outsized influence on humanity's future. That is likely changing, as the American empire continues to crumble and it loses its financial hegemony. But we aren't quite there yet.