In the developed world today's poor live like kings of old. In 1000 yrs I would imagine that their poor will live better than our wealthy "Playboys" of today. I see nothing wrong with people being in different places, so long as they have the ability to better their circumstances.
The ability (and actuality) of improving circumstances is more or less happiness, happy lives are definitionally worth living.
This is nothing like a king, who could have a large family, and was well fed, had permanent shelter, didn't pay rent, etc etc. How ridiculous.
It turns out electricity, air con, motor vehicles, and the internet are not the source of happiness, as much as advertising would like us to think otherwise. I bet your average homeless person in America would happily trade for a life in time past if it meant family, community, offspring, and the like. So much of our work today is meaningless, the same can't be said for our evolutionary history as apex predators.
Along many facets, yes, life is much better. But let's not pretend that we haven't regressed in many ways, for much of the population on Earth.
The New Republic has a pithy way of putting this: money doesn't buy happiness, but poverty increases sadness. In other words, you may not be happy just because you have 3 square meals a day and a roof over your head, but you would be a lot less happy if you didn't.
https://newrepublic.com/article/120859/money-doesnt-buy-happ...
80% of the hierarchy of needs is immaterial, so at best your argument is weak. In many cases people will actually sacrifice physiological needs to fulfill the spiritual, intellectual and social ones (flipping the need pyramid)
I admit its hyperbole. But some things are comparatively like magic. Cellphones/computers, vaccinations, Internet, democracy for example.
i also dont dismiss standard of living arguments, i think they are valid. but i think they aren't the whole picture. i think alot of how we feel depends on how we compare to those around us. 100 thirsty people in a desert are much more pissed off if you add 1 person with excess water standing right next to them not giving them any. so, some consideration to the overall shape of the distribution of wealth is necessary in my opinion.
The analogy isn't entirely correct. If the thirsty people got all the water they could drink and a guy joined that owned a lake... They shouldn't really complain.
It's literally better for everyone, even if the wealth distribution is worse.