A study of 20,000 20- to 64-year-olds found that people's satisfaction with their incomes is not strongly correlated with the amount they make.
Statements
contrast / causal difference-maker:
people's satisfaction with their incomes is not seemingly caused by the absolute amount of money they make.
rather,
people's satisfaction with their incomes is seemingly caused by the relative amount of money they make to other people in their neighborhood (usually from a similar economic class)
Goal
Look for an answer that safely reinforces or explains the fact that people mainly evaluate their income in relative terms to their neighbors, not absolute terms.