People like this are usually driven by something missing within. Alexander understood this when he met Diogenes, and went to conquer the earth rather than deal with that.

There’s a reason pride is a sin in the Christian tradition. There’s a lesson to be reflect upon in the story of Alexander and Caesar... Ceasar’s conquest of Gaul was complete and epic. He slaughtered and enslaved a statistically significant proportion of the human race. He became rich beyond comprehension and built a legacy admired millennia later. Yet he died stabbed in the back by his friend, still unsatisfied.