The degree to which a job has substantial impact on the lives or work of other people elsewhere in an organization or in the external environment is called

Task significance

Explanation:

Task significance is defined as perception or believe that an individual's job implies a positive influence and well-being on other people.It states about help and meaning provided to the work and other co-worker.

The impact created by task significance is detected to be support, help and optimize the external work environment by an individual doing the job.Task significance can be seen through giving opportunity to a particular employee to do the task.