Since empties should NEVER be left on the ground when hunting (if you don't reload, they are trash and last a LONG time) extractors are fine. Ejectors are probably a remnant of British driven bird shooting with a loader. All my guns have them (it's not easy to buy a modern gun with extractors) and I just hold my hand over the breech when I open the gun. Also, with extractors, there are no ejector hammers to cock so the gun will close more easily.
Joe