No, not saying that only Ne's make incredible actors. It's just the way in which the character is approached in his films suggests to me a person who thinks of the world outside himself in terms of ideas and abstract concepts. That's an Ne.
Also Nes aren't the only one with role models. I think you're oversimplifying what I'm trying to say. There's a purity and unconditional quality to the way in which he looks up to his role models and he discusses the attributes that make them great to him in a way that's specific. Granted, I'm not giving much hard concrete evidence, but that's a tall order when we're talking about reading personality types.