The public wants: Cheap, reliable, quality services.
A corporation wants: Maximized Revenue.
The two inevitably clash. No matter what business, no matter what country. Don't believe me? Go and find a single instance of a service that used to be provided completely by the government, that got BETTER FOR USERS (that is: The Public, not investors) after being privatized. I'll wait.
Public utilitis HAVE TO be run by the public, meaning the government. In pretty much every instance where this isn't the case, the provided service is more expensive, and/or less effective for the people.
And that's why I am sick and tired of the old trope "bUt pRivAtE sEcToR mOrE effIciEnt!" Sure. That would be the same private sector that caused almost every non-war related major economic crisis, is it not? I think the "efficiency argument" is already a moot point.