The number one political power on Earth was the World Government. There were many mystic factions that held considerable power in their own right, but none compared to the government.
After all, how can one match an organization that has the power to influence the world on cultural, religious, and economic levels?
The longevity of any organization, whether it was government or corporate, depended on the image it projected to the world.
While strength can destroy all rivals, it couldn't destroy the resentment in the hearts of people.
Slowly, the resentment would accumulate into a volcano of hatred and burst out, ruining the organization. It might take decades or even a century, but the end was destined.
Perhaps, the fall of dynasties and religious powers before the nineteenth century was proof of it.