Did the "American dream" change over time, or was it just my interpretation of it?

So growing up, I had this idea that the American dream was about that if you put in an honest amount of work, you would be rewarded with a good life. This would mean you would be able to take care of yourself and your family, afford a car and a house. In my view, working one job would probably be enough.

Nowadays, I get the idea that the American dream has become about working your ass off in order to have a chance to become a millionaire. Somehow glorifying “the grind” appears to be a part of it too now.