Must be nice having open fields that you can just walk along the edge of for all of 300 yards to get to your stand. If that's all you need to do I can see why you would question the use of a light.

Most of my hunts are on public land. Yes, i can do some scouting but i have to trailer the boat and take it a few miles into the lake and then begin scouting. I can only get so familiar with the land. There is no field. Its heavily wooded, dense Mountains/hills. climbing over downed trees because the hillside is too narrow to go around. One wrong step and they are carting you out of there (if they find you over the hillside)

After 1-2 miles of hiking (trying to get as far away from the other hunters as possible) the trees, dense brush and rocks all look the same in the dark. I can't say "the 5th large tree and their's your stand" as you do.
So yes, i use a light, and trail markers.

Quite frankly, i've gotten turned around while scouting during the day in this area.