Merriam-Webster, an essential distinction:WORK? or JOB?

Google dictionary help for work.  Do the same for job.

As you go about your day, allow yourself to think about this essential difference.

Then, consider how we have allowed our industrial age fascination with the factory ... its parts machinery along with speed (and greed)... to infect our very concept of what it means to be human, to sustain ourselves in our natural environment.  Then extend your thinking to include the impact on our families, our schools, our marketplace, our cultures ... and our individual capacities to contribute in significant ways through accomplishment.

An important, indeed essential difference,  boils down to this: 

• a "job" indicates some aspect of the whole...a specific piece of the process or person's efforts, disconnected from the whole.
• in contrast, "work" is an entirely different ...holistic...concept.  In work, the whole process, the whole person matters. Our "work" allows us, even expects us to make a difference!