[kjsbfkjbf]

It would also be nice to frame "necessary" and "unnecessary".

I would think developments like saving the environment, healthcare research, improving public transportation, energy consumption, etc. are all "necessary" work. Building Uber or Twitter or Facebook? I'd lean more towards "unnecessary".

HackerNews is so close to arriving at the conclusion that most jobs (including their own prized "skilled" engineering) are worthless outside of capital accumulation. :)