Right? It's the way the promise of exposure is demonstrated as the greatest reward. Something as simple as "Hey, we're doing a section on such and such business at our university, and we were hoping someone from the community would be willing to take the time to come and talk about what they do to the students." Instead they tried to make it about some kind of non-existent exchange of value, when really it's just an opportunity for somebody from the community to come tell students about something they love! My cousin would come and talk to any college class about trains for hours. I'm sure he would plug the nonprofit train club in his city to try to convince people to donate or join, but that wouldn't be the reason for going. He's going because he loves to talk about the thing he loves to do.