I guess only people Rich enough to retire and live on their current money are actually wealthy. Everyone else is stuck working regardless of pay. Some Rich people are terrible at finance and go bankrupt and lose everything but that’s another topic altogether. That doesn’t give them an excuse to create a permanent underclass of working poor, actually yeah it does in America /usa because it’s legal. Some people call it crony capitalism , but it’s closer to the ancient Roman system or feudal Europe in wealth disparity .
yeah if you look up what a wage slave is it’s someone dependent on wages to survive and live on. Anyone making less then that amount I don’t know what class they would be or title probably lower than a slaves/serfs because they were typically guaranteed a home of there owners unlike the homeless who get nothing. It would be something of a underclass and many people in America are stuck with student loans for jobs that didn’t pan out or exist in the fist place. So if your working a low paying job and paying these loans off at the same time you’re essentially making nothing until there paid off.

In the USA you could be homeless and working a low pay job at the same time because the job itself doesn’t pay the cost of living.