I understand what OP means, for this issue: considering the example above of your story, that worker can accept for the sake of food and clothing or for the sake of family life or children that he chooses a job to earn money that he does not like or does not have the time and necessary conditions. Even in my country, university graduates cannot find a job in their major, and life forces them to choose another profession to earn a living. That is a forced choice. On the contrary, if that worker chooses a job that is not interesting but has a better salary than their favorite job, it means that the worker chooses and accepts their opportunity to earn money, basically going to work to earn money.