How about if you promised not to do that in your acceptance of the license agreement?
Your friends "need" isn't necessarily a valid claim on the fruits of the software authors labor. (A "need" for software? Come on.) It might make a very compelling argument that the author should choose to gift a copy to your friend, or offer an educational version (as many do), but I can't see the logic that a need is a valid claim, moral or otherwise, on someone else's work.