Safety and productivity

When your hands are crucial to completing a job, every minute counts til its completion, and when they use the ladder carrier, that means less stops for their hands to rest from the weight of the ladder edge cutting off blood supply to their hands. Also by having an external device attached to the ladder for carrying, your technician hands are in a safer position then between or under a ladder legs. Thus, reducing the risk of on the job injury.

With the carrier, it distributes the weight more effectively then by hand. Less back pain and ability to carry ladder with one handed.

Productivity
When a trade laborer has one less pain in their day of work, makes a more productive worker. With less rest stops, more time is put in the job at hand and faster completion of job can equal less time and more in profit.