I prefer the gloss look since I keep my car super shiny
I say get some clear on them!
For me it comes down to the look the owner is going for. For more race/drift/sport style looks I think the matte fits better. I see a lot of M3's, Mustangs, 370/G37's running matte wheels that look right at home with their other mods like decals, spoilers, etc.
For a more luxo look I think some gloss on the wheels is proper. Keeps thinks looking crisp and fresh if that makes sense.
I couldn't even tell they were matte finish in the pics above maybe since they appear to be in an overcast weather setting or shadows. I think the think spoke design makes it a little harder to notice at least in the pics.
Dang, I typed too much. Go with your gut!