Where is it written that everyone is guaranteed a standard of living that continues to improve infinitely? Again I will repeat, if you are not making $15/hr, it is because you are a terrible employee/prospect.
There is a whole bevy of reasons why one would analyze previous and recurring sales. However, in the context in which you keep trying to make your point that houses have become less affordable there is little value in the Case-Shiller. As I have repeatedly pointed out, that index does not adjust for the quality, size, or amenities of a home which have *substantially* changed in the last 70 years, yet you continue to ignore that. Another easy example is why have car prices vastly outpaced CPI? Well duh, they have become far more reliable, safer, efficient, and luxurious.
Why do I care about that? As a shareholder I want the management of the company to have their goals aligned with mine. Shareholders employ C-suite executives to look after their interest (read: investment return/share price) not to be popular with labor.
Again, you are too stupid to realize how inaccurate you are.
The chart you linked is referencing housing prices, without adjusting for quality/size/amenities as I have repeatedly shown.
Below is a chart (from the St Louis Fed mind you) that shows real household income over time.
Further, interposing a chart of productivity has absolutely nothing to do with wages. Productivity is increasing not because labor is working harder or better but because the owners of the businesses are investing in productivity improvers like automation and computerization.
Real Median Household Income in the United States (MEHOINUSA672N) | FRED | St. Louis Fed