Government is always good when choice is bad.
Corporations are always good when choice is good.
Some may try to argue that choice is always good, but it isn't. Five competing roads with 20 different owners that I have to use to get to work would not be a good thing. A single government planned road is not the best but it is better than the alternative. Many things can compare to this, usually where it requires stepping on property rights, such as running power/water/gas lines, building roads, and similar. Otherwise keep the government out of it.