Yeah, but in the 70s you'd probably be living in an apartment built in the 1930s. The ones actually built in the 70s were a small minority back then, just like the ones built in the 2010s are a minority today.
And there's no automatic reason that doctors and manufacturers should have captured the increased value of their procedures and products.
Similarly with cars, they still got you from a to b in a good enough fashion.
It’s the 80/20 rule, and many people would buy 1979 level items if they were available at 1979 prices.
You wouldn't have to pay me to live like that. Though I wouldn't want to go back to the kind of energy infrastructure we had back then.
So now our typical building code says you have to pay for copper wires instead of aluminum, you need arc-fault interrupters instead of circuit breakers or simple fuses, you need wired-in alarms in every room, an air conditioner must be installed, balloon construction is prohibited, walls need internal cross bracing, studs must be close together, and on an on. If you can't afford all that, evidently you aren't supposed to have a home.
Likewise, producing the original VW Beetle and selling it would be illegal. You have to have a zillion air bags, all very expensive. You have to have a camera and a screen. You have to have ABS or even traction control. You have to have a catalytic converter. You have to have more than one brake light. The turn signals must be lights. If you can't afford all that, evidently you don't belong on the road.
https://i.imgur.com/OrMwlkT.png
You can also see that wage growth by the bottom half has soared (up four fold since mid 2013), and is now well outpacing wage growth by the top half: