You know what, I realized something in episode 9.
Maou didn’t become Demon Lord Satan out of sheer strength and talent.
He worked his ass off for that title.
He has really good leadership skills, but he’s also smart and innovative with big goals while being unafraid to get his hands dirty.
If he’s given a task, and if its a step toward his goals, he’ll put all his effort into it and do anything he can to achieve success.
He plans big and works really hard.