> No matter what the numbers in the bank account says, the number of people who can get the good stuff will be limited to the actual infrastructure and actual production output.

Only if you define "the good stuff" as "the best stuff." If you define "the good stuff" relative to a subsistence farming or hunter-gatherer lifestyle, the median person today in a developed country is arguably richer than the richest person in town 50 years ago, the richest person in the country 100 years ago, and the richest person on the planet 500 years ago.

Let's pretend that we don't have a time machine and stick with comparing what we have today.

Translation: I don't want 'the good stuff', I want 'better stuff than other people.' You're not arguing for quality of life, you're arguing for privilege.

I don't argue any of these stuff

This is nonsense, you could buy a nice car and a home 50 years while working at the post office. Because we have faster computers and smartphones does not make us wealthier.

What would make a median person today, working 8 hours a day, 5 days a week, richer than the richest person in the country 100 years ago?