If you post some pics then it will be easier to see what level of scratches you’re describing.
Official advice from AP is that there is a finite number of times a bezel can be polished before it loses its sharp edges.
This is the deepest ding I have on my ROO - actually grown to enjoy seeing it as a reminder of the long weekend it was added on.
Regarding value loss from polishing - if its done by AP and doesn’t affect the crispness of the case/ bezel then it shouldn’t have too much of an effect. If it’s done by a third party and all the edges are rounded etc. then it will put people off.