I did retirement home training and used to think it was a sweet job. Then I got in the business and underestimated how demoralizing it was as they give you the easy elders in training while the others make you, or at least me, really think of the fact the job just amounts to an unkarmic freebie.
Being a middle manager (and therefore biased), I view my role as the person who serves the team by:
This allows them to do their jobs as best they can. Could they get by without me? Probably. But they would have a worse time and not be able to work as effectively.