Most people want “enough” income. What “enough” is depends on the person, mainly in terms of their spending habits and what margin of safety they are looking for. Someone who can live on $20k per year will find that “enough” income is smaller than someone who “needs” $200k per year. The person who can live on $20k per year therefore has a wider range of suitable career choices that produce “enough” income.
Note that educational debt can increase what “enough” income is. For example, MDs often have $400k debt after medical school. They may need a higher income to pay off the debt than someone who had $27k or $0 debt after a bachelor’s degree, if they have similar spending habits.