[bigdollopenergy]

No. But also very much yes, if you're talking about the economy as a whole.

Transport is massively profitable for the economy but not for the transport companies themselves, they simply can't capture enough of the value generated to turn a profit. If they try then the level of travel disproportionately goes down to make them lose even more money. It's why most/all of a public transport needs to publicly funded in some way and saving a penny or two per ticket on WiFi will cost far more to the economy than it saves.

There is one notable exception. Japan's train system is profitable depending on how you look at it. The trains themselves are a "loss leader" in that they actually lose money per train ticket, but the company that runs the trains also owns the terminals (lots of retail space) and the commercial real estate around them, which is where the money is made. They are in effect a commercial real-estate holding company that's doing transport on the side to beef up their portfolio.

[biomcgary]

I think real estate was also a large part of the financial model of the the "railroad barons" of the late 1800s in the US.