That dream was always a lie. But in the past, people could purchase more in parity. You only need to look at income versus housing cost in, say, Canada.
Realistically there should not exist any superrich, but this seems hard to change. That means there needs to be a different society be given as promise. Other countries manage that. In the USA they have the orange oligarch who said a while ago how there is no money for health care because he has to invade countries and wage war. So much for the "no more wars" promise.