This is exactly why "democracy" and "capitalism" are impossible to fully exist side by side. Capitalism rules necessarily destroy democracy because its basis is the accumulation of money and power by a few. On the other hand, perfect democracy will give people the power to remove the money privilege of the few through taxes and policies (the founding founders already knew this). The idea that we have democracy in a capitalist system is the peak of stupidity, because people are deceiving themselves about being free, when in fact they're just doing the bidding of the super rich.
So capitalism in practice compared to a perfect democracy where the powerful few handle their power without becoming corrupt? Well obviously the theoretical system wins here, but it sidesteps the biggest problem that people do not handle power well.