One of the fundamental take-homes of economics is that government spending is not what makes people prosperous. It may help achieve social outcomes, slice the pie more evenly, but not make it bigger. See for instance https://en.wikipedia.org/wiki/List_of_countries_by_GDP_%28PP..., and cross reference against tax rates; most of the countries above France have lower tax/government spending. Singapore, with a purchasing-power adjusted per-capita GDP double that of France, has a top tax rate of 20%, and unlike some of the other top countries on that list doesn't have any significant supply of natural resources to fund government spending.