Gordius was never a just a simple farmer, rather he was one of the point men for a Qabbalistic experiment in raising spiritual consciousness.
The Gordian Knot was the physical manifestation of a mathematical expression of social harmony, and the challenge to unravel it was meant to expose those who would dare be leaders to the refined, conscious altering arguments for peaceful coexistence. The closer one came to understanding the mystery of the knot and untying it, the more changed they would be by its formula.
Plato knew about the Qabbalists. He'd uncovered information about their existence and intents during some of his earliest research into Atlantis. He did not trust this ancient order of secret keepers, however, and thought them a danger to the way of life he was trying to help create, so he gave his most promising pupil the task of keeping them at bay.
Aristotle worked on the problem for more than fifteen years, even after philosophical disagreements with his mentor kept him from heading up the Academy upon Plato's death. His most promising solution came after leaving Athens when he was asked to tutor the son of Philip II, King of Macedon.
This is how Alexander the Great was set on the path to Gordius' fabled knot, not to unravel it, claiming the secrets of peace and bearing them into the world, but to destroy it, and spread through force of arms the visions of peripatetics, academics, and hemlock drinkers.
Two years later, in 331 BC, Alexander made a dangerous pilgrimage to the Oasis of Siwa to visit the Oracle of Ammon. Alexander had two questions for the Oracle.
"Have any of my father's assassins escaped unpunished?" he asked first.
"Yes," the Oracle responded. "The chief architect of that treachery lives on undetected and undeterred in a land where your name is yet unknown."
Unsettled, Alexander presented his second question. "Shall I conquer the whole of the world?"
"To conquer the whole of the world one need only untangle Gordius' knot," the Oracle replied.
"Ah!" Alexander shouted victorious. "This thing my hand has already done."
"No," the Oracle answered, explaining the nature of the Qabbalist creation and the consequences of his circumventing their intent.
In the few years that followed, Alexander declared himself a god, fell into debauchery, murdered his best friend, lost the respect of his men, and after more than a decade of leading his armies to victory in battle, died from a mosquito bite.