You may call me a hater for what I'm about to say but I think it's due to 2 things:
Since a lot of fandoms have adults being interested in media targeted at a younger audience, I feel like some people have some sort of complex which makes them...
648 - I didn't spelled it backwards by the way.
EDIT: Don't mind me, I don't know how to count apparently. (My genius intellect thought 647 is succeeded by 646 for some reason)
Wario being an electrician feels like a natural fit to Mario's similar-yet-different plumber. Of course, most of the electric work we've seen him do is... done to him, through lightning strikes and electrocution, but not many electricians have...