It may amount to nothing, but that one slot higher in the middle of the 1st round does have potential value.
Depending on how the draft is going, who is on the board, and who is an interested trade partner, a one slot move at pick 16 is worth anywhere from a 4th to 6th rounder. That's significant.
I guess things balance out a little becasue you rotate each round...but the significance decreases each round, obviously.