I argue you must evaluate against median purchasing power; it accounts for inflation and (lack of) wage increases.
Comments from your linked video:
> The problem with the “adjusted for inflation” argument is that it does not factor in buying power. The increase in wages has risen at out half the rate of inflation, so sure; $20 in 1975 would be $124 today, but the minimum wage in 1975 was $2.10 an hour as opposed to $7.25 today, giving you half the buying power you had 50 years ago.
> healthcare, housing, and education ... have increased by an insane margin leaving people with less money once that has been paid for (if at all).
> It's even worse when you consider that people are paying 45-55% of their monthly income on a house that cost 20x more than it would have in 1975. Your buying power is fucked from all sides.