if you want the philosophical answer, then yes, its wrong.
the real world answer is yes its wrong, but everyone does it all day long, every day.
i don't like working 9 to 5, i can't deal with the pubic, so i sit in my cave and grow this weed.
other people really like this weed i grow. i picked 3 or 4 of them, and they come over and i sell them what i can't use myself, for right about half what they can get it for anywhere else. so i can sit in my cave and grow this weed, so i don't have to deal with people.
i'm using them to reach my goals, they're using me to reach some of their own, and i'm sure there are yet others using and being used by them once they leave here.
as long as no one is getting hurt and at least a few people are getting what they want....i guess its ok......?