No, because he was double taxed on the same money, once when he earned it and again when he made money from investing it.
Capital gains tax rate is lower than ordinary income tax rates.
Ordinary income can be simply defined as the income earned from providing services or the sale of goods (inventory). This category includes income earned from interest, wages, rents, royalties and similar income streams. Ordinary income is taxed at different rates depending on the amount of income received by a taxpayer in a given tax year. In 2012, there are currently six tax brackets for taxing ordinary income: 10%, 15%, 25%, 28%, 33%, and 35%. These ordinary income marginal tax brackets are scheduled to expire at the end of 2012. In 2013, the 10% through 28% tax rates will remain the same and the top two rates of 33% and 35% will be replaced with higher rates, 36% and 39.6% respectively.
Capital gains are usually associated with the sale or exchange of property characterized as capital assets. The amount of gain is measured as the difference between the amount received by the taxpayer on the sale less the original purchase price, adjusted through the date of the sale (purchase price plus any improvements less depreciation taken). For more information on the formula to calculate capital gain on the sale of a property, see
Calculating Capital Gain.