I was reading atlas shrugged, and I was thinking about why our marvellous capitalist system is so marvellous. It's because people are motivated by money, so they do work to get money. In the process of doing work, they contribute to society. This is the reason why American is such a great country with a great economy (compared to most countries) and the home of many great innovations. All those contributions that made America so great were motivated by profit. Bill Gates brought computers to everyone because it was profitable to do so; the new drug that cures diseases was produced because it's profitable; farmers produce the food we eat because it's profitable; doctors become doctors and help people because it's profitable.