Alexander knew that if he just forced the Hellenic culture on the nations and people he conquered, there would be mass resentment, and uprisings. He blended cultures to prevent that, and really, it worked.
It was one of those things that was very short sighted. It demanded that Germany make payment to the victors (most notably England and France) for the cost of the war.
How was Germany going to do that, they asked. Germany was beaten and her economy was a shambles, to say nothing of the moral of the country. It made it easier for Hitler to take power in the early 30s.
