Thinking about it, I'm okay with Eisenburg as Luthor. The idea of a CEO has changed since Luthor was first introduced, with younger people like Elon Musk or Larry Page being the most prominent business leaders in the world. Why can't Luthor be an up and coming genius like them? A young guy with infinite ambition and the intelligence to achieve those goals can be a good Luthor. Not to mention, Eisenberg is typecasted as an Everyman character often, someone like you or me. Luthor should be an Everyman, with his pro-human ideologies. Someone relatable.