Profit motives in infrastructure are a bad idea. See Thames Water in the UK, for instance. It always introduces a perverse incentive where if the company in control of the infrastructure can extract an extra million in profit by making everything less efficient and costing everyone else involved a billion, it's still in that company's interest to do so.

This is a prime example of that. H&R Block, etc, benefit from there not being direct file by around $3bn in revenue or around $750m in profit. Rough sums on the time saved by direct file if everyone used it is 8h * average wage * taxpayers, which seems to be approximately $44bn. i.e. in axing direct file, it has "created" $3bn in economic activity to the private infrastructure-owner (the intermediary between you and filing your return), but at the cost of $44bn in lost time & therefore lost activity (the other things you could have been doing) to the rest of the economy.

Infrastructure is not the economy. Infrastructure is the thing the economy runs on top of / has to use. Given that it is the role of government to govern the economy, it is the role of government to ensure that the infrastructure is running well (be the custodian of the infrastructure).