There is no difference. That's where the song stems from. What I find fascinating about Ed Gein is he's become an almost fictional character. A lot of people in their everyday lives have an attitude where they tend to want to put a label or a formula on everything. The thing with Ed Gein is, I don't think anyone could ever explain him.
Society has to guard itself, and judge by the concerns and needs of the system at large.
He, of course, had to be removed. Still, I think Ed Gein reminds us that we live in a very mysterious, ever-changing, moving, potential universe. As an artist, I don't ever want to find myself where I am not willing to embrace the mystery or understand people like that - at least on some level. A lot of people might find that statement threatening, or even rude, but it's an artist's main responsibility to be honest. I will guarantee that I will always check my intentions in the work that I do.