This is a genuinely contested policy question where reasonable people disagree based on different values and empirical judgments. Let me lay out the actual considerations rather than push a conclusion.
Arguments for higher rates on the wealthy:
•Diminishing marginal utility of money—an extra dollar matters less to a billionaire than to someone struggling
•Wealth concentration has increased substantially in recent decades in many countries
•Public investments (infrastructure, education, R&D) partly enable wealth creation, suggesting reciprocal obligation
•Revenue needs for programs many voters want (healthcare, climate infrastructure, debt reduction)
Arguments against/for caution:
•Capital is mobile; very high rates can drive investment, businesses, or people to lower-tax jurisdictions
•High earners often already pay a large share of total tax revenue in progressive systems
•Behavioral responses (tax avoidance, reduced work/investment incentives) can mean higher rates don't yield proportionally higher revenue
•Some argue taxing wealth/capital gains discourages investment and slows growth, which has broad effects
Empirical complications:
•Economists disagree on optimal tax rates and revenue-maximizing points (Laffer curve debates)
•Effects depend heavily on how it's done—income tax vs. wealth tax vs. closing loopholes vs. capital gains treatment
•Country-specific factors (capital mobility, enforcement capacity) matter a lot
Where the real disagreement lies:
Much of this boils down to values—how much you weight equality vs. growth incentives vs. property rights vs. collective obligation—not just facts. People with similar economic knowledge land in different places based on these priorities.
If you want, I can go deeper on a specific angle: the economic evidence on optimal top rates, wealth taxes specifically, or the philosophical arguments about taxation and fairness. What's most useful to you?