There is no difference for the one on finals, because he is TA only. The difference is that your transponder will only be dishing out Callsign, squawk and level. At worst, this will only generate a TA (right up to the point of impact). The important thing is that you are not part of any RA contract for those aircraft in your line of sight. When you are TA only, you will always be taken into account for another aircraft to calculate an RA to avoid you or any others.
PM