The real issue is why doesn't later stages capitalism just create wealth for all? Why does my boss's ideas of work, which he learned from his boss, eventually trickle down to my idea of work and when I push back I open myself up to punishment? Why does his greed normalize work life?
I imagine a maximum income/net wealth cap on individuals would stop that but short of a revolution I don't see that happening anytime soon.
Industrial capitalism is over 200 years old and shows no signs of stopping. Its biggest competitor, communism, failed spectacularly. So yes, the oil money will run out and then the laws of scarcity will put these economies in the same place everyone else is in. This scarcity will trickle down to labor as the cycle repeats itself.
Or, more likely, oil prices will crash once ICE gets replaced by electric vehicles and we power them with solar, nuclear, natural gas, and wind. That will most likely happen well before 50 years. A lot of good that oil will do Norway if no one wants it.
Norway also has a state pension fund that is the largest in Europe at slightly over USD700B, bigger than California's pension fund.
Even if things turned bad Norway would still have USD250k~300k per citizen in state funds (if things turned out rosy it would be nearly USD650k per capita). Compare this to the USG of nearly USD9k per capita. In PPP terms Norway has little to worry about.
At today's prices. Do you really think oil demand will continue for the next 50-100 years at this level with all this investment in renewables? We're currently at a price slump close to pricing from two decades ago.
Its a little presumptuous to think oil will continue to have this value.
Wikipedia says it's a mixture of equities (60%), government bonds (25%), corporate bonds (10%) and real estate (5%). If (when) oil profits vanish, these investments will still be there. In fact, since they are legally unable to withdraw more than 4% of the fund's value each year (and typically make more than that), it should continue to grow indefinitely.
The fund has a really interesting set of ethical guidelines--they won't invest in tobacco companies, companies causing severe environmental damage, or those involved in nuclear weapons or cluster munitions, for example.
The Norway sovereign fund isn't the valuation of their oil businesses, it consists of 1T investments in non-oil businesses, including renewables, that have been funded by oil that's already sold at yesterday's prices. If oil become worthless tonight, they'd still have the 1T fund and it's ongoing proceeds.
Leave North America, it's a whole new world(TM)
I recently read "A Year of Living Danishly"[1] - an amazing account of two early-30s brits who move to Denmark and learn how life works there. After an adjustment period, they are floored, and I mean absolutely floored how good the work/life balance is. They are shocked their old life they loved can seem so horrible in comparison.
I asked my Danish friend about it, and he said "Yeah, I like living in a country that focuses on being happy rather than focusing on getting money."
[1] https://www.amazon.com/dp/1785780239/?tag=roadchoseme-20