>>50
Okay let me restate that. No government builds up businesses, solid or not. Greed/ambition/boredom are always the motivations that PRIVATE individuals have when making and running a business.
When a government creates a public monopoly or supports a private one, it (hopefully) does so because the interest of "altruism" (that is, the public interest) outweighs the private economic interests. For example, if the transportation infrastructure were privatized, that would result in having a private company enjoying the economic benefits of collecting tolls, but that small benefit is nothing compared to society's need to have roads that are working so that people can get to work (this is in a few years from now, when your mom will maybe let you borrow the car to go to the mall).