That just depends on how you do the accounting, right? In a similar vein to how "police just exist to protect capital", it's not hard to construct a narrative how the whole point of schools and roads are to prepare workers to be corporate cogs and to transport them to work as corporate cogs. In the case of roads it'd be difficult to argue otherwise. For someone working 9-5, non-wfh, most of their road use is for getting to and from a job, in other words an activity that benefits corporations and their shareholders. On the flip side, if an amazon delivery truck uses public roads to send packages to you, is that only amazon that benefits (because $$$, obviously) or are you benefiting too?
Nah - most of their road use will be embedded within every single product they consume across every waking (and sleeping) moment of their life.
Whether that's the immediately obvious direct road-transport involved in getting finished items from the farm / market / factory to their local store for them to be able to buy or whether it's the never-ending long-tail of indirect road-transportation usage that's ultimately critical to every aspect of modern life - from the most basic movement of raw material to produce energy (and the moment of the people who do the extraction and production), through movement of materials to grow their food - whether the literal seeds; the fertilisers, the raw materials to make the spade that was used and so on ad nauseam.