Not remotely. In increased because asset increase in real value. Yes men add savings to their asset holdings, no that does not remotely account for the growth in asset values. The book value paid for something and its market value now are not the same. Men paid for stock in the 1940s that their family still owns today. Men paid for houses in the 1970s that their family still owns today. Men invested in their small businesses and professional practices in the 1980s and 1990s, that are still profitable going concerns today.
Assets increase in value, Americans own great gobs of them, so Americans are rich and go right on getting richer. Grok already!
I’m looking at this through the lens of my own experience. I started out almost 40 years ago with little more than the clothes on my back. If you had doubled the cost to provide health care for myself and my family for that 40 years I am quite certain it would have substantially impacted the amount of wealth I have been able to accumulate in that time.