This line of reasoning makes no sense to me. If the government was better at building things than "profiteers," why shouldn't we just have the government build everything? Why shouldn't the government make cell phones and iPads? Why does Silicon Valley even exist?
In fact, we tried your proposal at scale. Nearly every developed country privatized electricity generation in the 1980s. Many countries, like India, still have state-owned power companies. If they were better, we would know.