I must disagree with your assumption. Because capitalism is the NOT only way of getting things done. For a VERY BIG example, it was the federal government, in concert with business, that helped win WWII.

I'll include the link below, But here's a taste, "The federal government, through the Reconstruction Finance Corporation, advanced the necessary money to expand the factories, often leasing them to industry. The government developed new sources of supply for raw materials and created quick mass transportation. The government also went into the business of producing synthetic rubber and aluminum, as well as other emerging industries, and helped stimulate new technologies."

https://prospect.org/health/way-won-america-s-economic-breakthrough-world-war-ii/