Alexander the Scum

If I told you there was a man that hacked thousands of people to death with a sword so he could be exalted as a ruler and that he killed his friend because he refused to call him a God, would you call him Great? What if I told you that all he actually did was kill thousands of people because of him and his ambition, would you not compare him to hitler and call him a scum? 

Well, Alexander the Great was that man. Why do we call him Great? 

Did he create a medicine that saved thousands of lives? no! 

Did he invent a machine that made everyone's lives easier? No! 

Did he sacrifice himself to help mankind? No! 

Did he help starving people to eat? No

What did he do? Killed loads of people and ruled over their communities. That's it!!!! 

Please correct me if I'm wrong. I get things wrong quite often.