Are you sure it is brighter overall? Another major factor in light useability and effective illumination is beam shape and width. A light that is more of a flood than a narrow beam will give a wider view but at reduced brightness in the center of the beam. This can make direct comparisons between lights difficult.

IMO it would be nice if light manufacturers gave accurate actual lumens output of complete lights as well as photos of beam patterns both on the road and on a vertical surface to help consumers judge beam shape.

German road vehicle rules for instance require very sharp vertical cutoff on all legal vehicle lights to avoid blinding oncoming drivers. If done properly this puts more light on the road for a given lumens output level.