When new the wheels were put on a special lathe and the alloy cut back using precision diamond cutters that leaves a consistent pattern of cutting, which reflects light in a certain way .
I have never done the job but from what i have read, rubbing down to remove corrosion destroys this cutting pattern, and the difference WILL show. The best you can hope for is a slight improvement over what it was before.
They may look quite reasonable if the rubbing down is confined to an equal narrow band around the centre bore caps,sufficiently wide to include the affected area. While obviously different from the diamond cutting pattern this band may look quite neat and consistent in its own right, rather than random areas of rubbing down.
The most satisfactory way to refurbish diamond cut wheels is for an expert to turn them on a specialist diamond cutting lathe diamond cutting a whole new face. (then respraying in clear laquer ) Apparently having them recut more than once or twice can remove so much alloy they risk being weakened.
The other alternative is to abandon having 'fancy' diamond cut wheels , rub them down completely and get them resprayed or powder coated in conventional solid paint colour such as silver. Especially if the wheel has some deep kerbing scuffs etc that may be too deep to cut back on a lathe and need filling. But having this done professionally (to all 4 wheels) , may cost more than having a wheel recut, or a new wheel.