If the number of qualified workers increases significantly, you will end up with lower real wages. There were three major factors increasing labor supply around this time in the US. Immigration from Mexico, women continuing to enter the labor force, and reduction in demand/increase in (global) supply for lower skill labor via globalization of manufacturing
Not casting any judgment on whether these things are good, but they are far more likely to be the primary factor than inflation.
One thing that's occurred to me recently is that demands for a 4 day working week seem entirely reasonable in the context that the labour force has, if not quite doubled, dramatically increased (due to more women participating) over the last few decades (and that time has been taken away from time that was previously available for the completion of domestic chores).
I'm sure it is an efficiency win on the total, but perhaps not as gigantic as often assumed.
There is an efficiency gain in total, but a lot of losses that eat at the actual wins.
We could have been mowing your lawn or filling my taxes. That is how I remember it anyway. If you just help drink my beer we both get things out of it.
a computer won't increase the wage of someone whose work is unrelated to the procurement of the computer/system (even if their work was made more efficient).
For example, a checkout clerk now dont need to compute, because of the efficient Point-of-Sale system (when previously they'd need to recall prices). So even if the output of the clerk is now higher, they could be less skilled and so the supply increases, leading to lower wages.
The people whose job is to procure the computer systems _do_ get increased wages. That's why so many software engineers are rich.
This really took off in the Reagan years where real wages stagnated [1]. It was from the 1980s where you started to hear statements like "wage incresaes should be tied to productivity increases" [2]. If you parse that statement, it means no cost-of-living increases ie a decrease in real wages.
All of this is wealth transfer to the very rich and entirely intentional.
[1]: https://www.epi.org/publication/charting-wage-stagnation/
[2]: https://www.epi.org/productivity-pay-gap/