Grrrrr, Front End Friday

Ok, maybe just a baby grrrrr from Frog Huey….
The old wing top heater intake was just getting too bunged up with leaves and crap so I replaced it for one of the KBX ones.
Great quality with a proper mesh screen underneath and even comes with nice new stainless screws together with the correct screwdriver bit to attach them – nice touch.
Question is, they come in pairs – although there’s no need for one on the driver’s side, do I fit it anyway, or just leave it off – it wouldn’t be doing anything, only there to balance things up aesthetically…?
I hate things that aren’t there for a purpose…..but…..tempted…:-)