Yes, not having to do physical labour is better than being forced to do physical labour as a worker or peasant. The new problem for most people is how to eat less and get a little exercise. But this is a better problem.

I like rsync's main point though about the immune system maybe requiring usage and callibration (gojomo mentions the hygiene hypothesis). Perhaps one day we'll determine the precise amount of these required (if any) for us to be healthy without being bothered by too much sickness.