It's impossible to talk about this in general terms, but in most places, the utility poles are owned by the power company and Verizon pays to string fiber along them. It's unclear whether FiOS is profitable when taking into account the capital investment. They're running a small operating profit, but they have $23 billion to recoup. Almost all the traffic on Verizon's network runs on LTE, and that is spectrum Verizon bought the license to for billions of dollars in auctions.

It's staggering how much FUD there is on these issues. This is stuff you can just Google to inform yourself about.