For proponents of the NBN, the primary benefit rests on a theory that broadband is the type of infrastructure whose future value is inherently unknown but historical experience with similar endeavours (the Snowy, roads, railroads) provides support for forging ahead. The idea is that by providing it, innovators will work out how to make good use of it.
But the NBN as it is currently evolving is enshrining a monopoly and, indeed, literally ripping out other competing infrastructure all in the name of order. The ACCC has legitimate concerns and though should have much more.
But this exposes a contradiction. If the primary benefit of the NBN is the flow from innovation and that innovation requires chaos, open system and experimentation, then the current implementation of the NBN is anathema to all of that. You can’t have it both ways. Either you want the NBN and its innovation or you don’t.
And by the way, if you want historical support on the notion for information infrastructure you need to commit not to control read Tim Wu’s, The Master Switch. It’s probably the best book I have read all year.