Yep, but railroads were extremely overbuilt and huge swaths of companies went bankrupt. My point is that despite eventual usage, infrastructure is fraught with wiped out companies.

Look at the Alaskan Railroad for a more recent example.

Look to airships for an example of things that just completely fell out of use or trackless trains.

Good example, strategically invaluable, but worthless for many of the people actually building them.