I would having a job is only a subset of what not being idle means.

I always divide my time into two basic phases: productive and consumptive. Either you are creating something or you are consuming something. Sitting around watching TV is consuming; creating a tv show would be producing.

I think both activities are valuable and have their place. Sometimes you need to relax and enjoy a passive activity, but what makes society great is the production of new things; be they art, science, entertainment, goods..

I tend not to judge the WHAT of the creative side. It doesn't matter what you create, but the creation of new ideas and things is what makes us human.