two things
I use rouge to polish with. There are times when a rouge isn't cleaned out very well which isn't good if you don't get it out. If you believe that polishing with a rouge doesn't remove some of the surface, how is it that you believe that it actually polishes then? You don't get a shiny area without removing some of the surface which isn't needed in the lever gun.
The other thing is simply this, there is not a place in the rifle that needs it surface to be polished. Most of the time a lever action rifle will be very stiff when it isn't cleaned and lubed. Sure there are times when the lever action needs to be worn it as you might say, but jewelers rouge isn't what I would use to do this with. Simply working the lubed action open and closed will suffice. You defintely don't need to put rouge on the bolt and work it back and forth since this can and will cause slop. The locking block doesn't need it used on it either. The carrier nor the lever need it either. The hammer, hammer spring nor the trigger need it as well. So I ask you again, just where is it that you want the poster to use the rouge on? The ejector certainly doesn't need it and this is what causes a bind on the bolt most of the time. Now, sure you can remove the bolt and polish it, but the bolt itself usually doesn't bind. So, like I asked you earlier, just where is it that you want to use the rouge on?