Paul,
In my opinion,it depends on what you are paid and what time frame you have.
A relief manager is paid a relatively modest income and in some respect works a modest workload.
They do however have the burden of being on call a long span of hours.

A manager however, may earn a large income and in some respects I would not pay a management couple to sit and attend to reception and office duties only.

As an ex- retailer, my managers did a lot of menial tasks that weren't necessarily in their job description, however the time existed to perform these tasks.

I am not condoning what the owners are requesting, but more-what his thoughts are.so trying to justify what his thoughts are.

The accommodation game is a tough one and we must try to do as much in-house as possible, however the income should reflect this.