> The sort of tasks we must to at work are usually not those which we're adapted to find innately enjoyable, and the link between them and outcomes we do want is often indirect enough that we know it only intellectually.

So you agree that needing to do something doesn't automatically make it unenjoyable then?

> Secondly, the typical natural pace for the items on your list has peaks and troughs, natural downtime. Many jobs demand full effort for extended periods with not much downtime either on a daily cycle or a longer yearly one. That too we are not very well adapted for, I think.

I didn't say all jobs were fun. Most aren't, but not because they need doing. Needing to be done has almost nothing to do with how horrible a job is.