While all of those are certainly noble goals, the vast majority of people doesn’t even shoot that high to find any kind of purpose. Most people are already satisfied and feel a sense of accomplishment when their job creates something of value for *someone*.
I had a job with a great paycheck, but spent 40 hours a week doing barely anything. It was fun at first, but it became physically exhausting. I have now a job with similar pay but I build apps that people actually use in their day to day work and quite enjoy, it’s significantly more stressful and demanding than not doing anything, but I don’t feel nearly as exhausted as I did with the previous job.
I’ve felt it myself and have heard others talk about it, but there is an increasing number of jobs that is either objectively useless or perceived as such (by the people employed in that job). Either way, it’s not surprising to me that burnout continues to be on the rise.