There's the writer/directors, which make up by far the largest group in my experience. They want to make their own stuff, and their scripts have the camera directions to prove it.
And then there's the wannabe producers. They want the control of the writer/directors, but it's a different sort. They're the business-minded types who can see the big picture - literally.
So what category do you slot into? I'd say I'm in the first group, dipping my toes into the producing group. I've zero interest in directing, though - someone else can work out the camera angles and wear the truckers hat!