To simplify an answer to Terry's original question yes, particularly for the elderly and infirmed.
I knew of some very elderly people who didn't go out in service or give talks because of there
health but were still loved and respected by the rest of the congregation.
They did answer at meetings which was about all they could do.
But to the healthy and young the constant scrutiny of supporting zealousness shown by service, talks,
parts in assembly programs and otherwise is always a paramount observation within the organization.
The adjoining bragging of ones supporting zealousness was also a means to support an individuals good
standing in the congregation.