In the general context, income is indeed very limited but depends on how one can manage it. If you have skills, it is certain that people can generate more income by working in a more measurable and systematic way.
I do not think that you understood what "income is not limited" part, it means that you could either find more work, or find another work. That way you would make more money, if you want to make more money then you need to work to find it at first and then you need to work to earn it as well. I have seen people who do all kinds of crazy work just to make some extra funds and I have done that myself as well before.
It matters if you end up with a solution that will fix things, and I bet that it is going to matter one way or another. I believe that we should not be doing anything that will challenge the situation all that much, do not go against the tide and just accept that you need money and get to working if you want that.