I’m talking about how many people lived in the past

OP said they would be content with 40% less income for less work. That's fine, but I think it misses the point. On a large enough time scale, progress is so great that most wouldn't choose the past, nor would they choose our present if the future is substantially better. That's what I mean by "everyone wants more" ... it's what contributes to endless consumption rather than us working less hours when technology improves