Yes, it is a commercial gain.
So is the New York Times newspaper. (they sell the paper)
...but fair use has a long definition of how you can use it (even if if there is a commercial gain.) See, once you enter legal land, there are very "technical" differences between 100% correct, and not 100% correct. I don't like going into legal land, so I'd rather divert my attention into talking about STEEM, the blockchain most of the time.