So, what jobs are necessary for our comfort and well-being? Primarily, those in food production, shelter construction, and healthcare. Then there are the jobs that can support the above, so tractor manufacturers, and teachers as examples.
However, people seem to have a knack for creating jobs for themselves that seem inefficient. Indeed, owning objects that have been made in inefficiently labour-intensive ways is one way very rich people display their status. They are nopt the only ones, though.
Less affluent people will also make a point of using local goods and services, even if carries a cost premium, since they have a desire of keeping money in their area, supporting the livelihoods of people who might in turn be their own customers or clients.
We don't just go to work for the money. We go to work so we have experience of cock-ups and triumphs to talk about when we get to the pub in the evening. And yeah, that is a relatively privileged position.
So, how can we rejig this global system so everybody has enough (but not too much) to do, and no one is fearfully close to the breadline?