Well up until recently I spent 9-10 hours a day programming machines that turned mountains into countertops and fireplace and such for rich people. Every day I kind of made the world worse to make some rich people happy. I mean there was one day we took a slab of 10 million year old fossils cut from the bottom of the ocean and made it into a counter. This arguably does not improve the world.

4 day weeks or 6 hour days would have been pretty awesome, I could have likely been more productive in life things.

My new job is also nothing world changing, though probably marginally more beneficial to more people and less environmentally damaging, but the lack of 6, nine hour day weeks makes it more appealing in many ways.

Though, I'm kind of torn, because I find the actual work less fulfilling and enjoyable, but having time is nice.