Do you think that it is moral when a nursing home, taking enormous fees, asks for volunteers to help in the home - handing out coffee ....?

Nursing homes are for profit businesses. The people they hire are the cheapest help available. They are paid minimum wage and are often "part time"  so they can be paid even less. Their training is minimal, superficial, and inadequate. If they can get volunteers to do some of the work, the profit is even greater. My late wife was a supervisor at nursing homes. She always found evidence of abuse and neglect. And the help refused to accept responsibility. If YOU volunteer, the work actually gets done and it doesn't cost the corporation anything. Immoral as  hell!!!!

It allows the owners of the nursing home to keep more money and drive nicer cars.  

Since when have nursing homes been known to be moral.  
If they had to pay the volunteers, you can bet they would charge their residents more to cover the cost.   Most of their residents can't afford it and if they can't pay the increase, they could end up on the street or moved to a charity hospital ward then to a hospice where they are not given treatment and just left to die. 

 would not use the word moral, i would say obligation. Those houses of death need healthy people walking around, having conversation, taking an interest in the forgotten. The forgotten that were parents, teachers, coaches, fought for our country, good neighbors, whatever. Now old, forgotten, abandoned, alone.
All who shove their loved ones in those places, all who eventually will wind up like that, should pay attention, volunteer, maybe change the culture.

It is INCREDIBLY expensive to operate a nursing home properly.  And the residents can use the kindness of volunteers.  Things that the over-worked staff just don't HAVE the time to do.

I think it is more than moral.  It is KIND. Both to ask for help AND to give help.