Small entrepreneurial artisans are a rich source of ideas and inventions which cause technology to advance. They inject product variety into an economy and improve the yield of human labour. When such an invention or technical advance is seen to be successful, in jumps the capitalist. He starts to produce it on a massive scale and takes over the entire market. Product variety collapses into a high-profit mono-product. Development stagnates.
Creative invention and technological advancement is not facilitated by capitalism: but struggles along in spite of it. In an egalitarian society, technology would advance faster and easier. This in turn would increase the economic yield of human effort.