Most importantly, with government projects and services contracted to private businesses, if they fail, the government can replace them. Imagine if we just flat out relied on the private sector to build our energy grids. Without any regulation. Just let the free market run its course. Imagine someone like Trump owning the company. Oh, the workers demand $20/hour? 'forget it, i'm out'. Then, the hole just sits there in the ground and the citizens go without electricity. That won't happen with a government. If Trump doesn't want to do it, another company will.
"...the successful annihilation of organized crime's subculture in America would rock the 'legitimate' world's foundation, which would ultimately force fundamental social changes and redistributions of wealth and power in this country. Meyer Lansky's dream was to bond the two worlds together so that one could not survive without the other." - Dan E. Moldea
