The question is not how much money it was worth but how much of the median income was it worth.
Discussion
Sure, but with that you only focus on the vicious circle of inflation-wages, and you disregard the loss of purchasing power of people's savings.
If you save $100 in fiat currency, after a few years it will be worthless, and that distortion makes people prefer to consume rather than save. And saving is the basis for investment and a society that progresses from generation to generation.
Inflation isn't an issue IF wages rise proportionaly.
They don't. That is why fiat is going down the drain. But they do rise and adjust themselves to inflation.
Explaining the situation in median household income simply gives a more whole and correct picture.