Ok, lets assume a very wide luminance range. The paper still has a fixed range even though the film image is spread out over more of the curve. You dodge and burn to move things around on the paper!
Now, if you are doing still life or landscape, you have the time to work with the zone system. Ansel Adams did this, and did it very well, but remember it was his method used to explain something to others less adept as he was. Well, to continue, imagine that you are a news photographer following a breaking event. No time for the zone system. Overexposes a tad and you have no problem. Fire away. I've said this before, at near the speed of sound and upside down, you can't worry about the zone system. You are expected to turn out 35mm color and 4x5 B&W and every shot must be perfect. You don't worry about the zone system.
Or, you are laying out 25 - 60 cameras on a pad and are expected to get perfect photos for a launch 24 hours from now (if lucky). We did not have auto metering. So, we set a best guess which was overexpose!
All of this moved the negs up the straight line and as long as that was so, the photos were fine.