They pay way more total money, and most people are complaining about capital gains taxes but that's not really income is it? It's risked capital that has already been taxed at the corporate rates.
(Obviously, the above is too simplistic to actually rely upon, but that's how corporate taxes reduce investor returns, effectively resulting in double taxation in many people's mind, including my own. I still believe that's part of the reason LTCG are and should be taxed at a lower rate than ordinary income.)