You're not making a good case you aren't ego driven. No, it's not being an asshole. If you haven't read Verbal Judo, I recommend it.
Easy. When I set up in a work zone with workers present, if you were 13+ over you got a ticket barring something like a bonfide medical emergency, and then you got an ambulance. 9-12, warning. 8 or under, didn't stop you for speed. I know when I stopped you what the risk you presented to other people was and that risk was what I based my use of discretion on. Nothing in your demeanor, driving history, etc. alters that.