Systems endure until they don't. A system with a long history tends to have a more entrenched position and a wider base of supporters.
Or rather, until they give way to another system that exploits the masses for the elite. In reality, systemic change in the sense of mass exploitation ending has never occured in history. It was there through the 16th, 17th, 18th, 19th, 20th, and even today in the 21st century.
The form it takes changing is irrelevant since the exploitation of masses itself never stopped.
It doesn't matter if the name it's given or how it happens changes.
If you want a full categorical break down of 400 years of economic plans and conglomerated practices, I might point you to your local university and advise you to pick up any number of lectures on the subject.
But if you're just going to "Nuh-uh" everything since the Dutch East India Company incorporated...
What a roundabout non-answer.
Asking you to specify how the systems have improved specifically w.r.t. the common man (which I don't believe they have) doesn't require university lectures if you had a concrete answer.
I'm not "nuh-uh"-ing everything, I'm looking for reason for common beliefs people hold that, as far as I've seen so far, have been nothing but just vibes and values. In reality, those claims (eg: "systemic change is real and has happened!") have been historically inaccurate and anachronistic, if not simply straight-up false.