the English monarchy/oligarchy no longer had control over the people of the USA.

And now?

the question is are the people in charge creating system changes that benefit the majority of the population that live under that system or are they benefiting the minority wealthy who live under that system.

Isn't this the answer?

Unfortunately the wealth inequality in the USA is the highest it has ever been (not only USA this is a global problem).

Scandinavia (where I live) this is far, far less of a problem - but will change as the world follows the American model or ridiculousness.