Shifter Surround "screws"

I noticed that one of the "screws" that are on the shifter surround was missing.  I've owned the car a year and didn't notice.  The replacement part, which isn't a screw at all, is available.  These are non-functional fasteners.  On my car, it would not snap into the chrome surround.  I might have vacuumed up the one that was there, who knows.  Not sure why or if my surround has been modified/broken in some way.  I used a little clear silicone caulk to hold the replacement in.

51167896796 clip, $4.29r each

missing "screw"