I know the feeling. I had a great job in my retirement I was 73 and coaching soccer in the Phila schools. I loved it and actively played as well. I dint need the money but I was helping children. The national organization sold the territory to two idiots as franchise. They stopped my expense account and converted my to an Independent contractor. I complained and was ignored. I was their most popular and experienced coach. So I gave them an ultimatum talk to me by 12 noon or I quit. I had classes scheduled that day. I sent a text I quit effective immediately. Now I get a call and they said you cant do that you have classes. My response I dont work for you, you made me an IC. FU
More importantly, people should figure out how to do what they want to do.
If they want to work, it doesn't even have to be about the money, and they may enjoy contributing their effort or labor towards something that benefits others. They may want to get out of the house and engage in opportunities that reward them with far more than the money they manage to make doing so.
If they are not satisfied with the conditions they are working under, they can do as you mentioned and make choices that better serve their desires. It can involve gaining certifications becoming more valuable to their employers and giving them leverage or taking a risk and hanging out their own shingle using the skills they have learned.
Sometimes the key is simply understanding when what you are doing is just providing for your survival, and if you want more, then you have to figure out how you are going to get it. It doesn't have to all be about money, but money certainly helps and that cannot be ignored.
If someone begins to succeed and achieve goals like that, it is exhilarating and addictive. Just don't lose your bearings, and know when to step back, or you can literally kill yourself working and it will all be for nothing you get to enjoy.