When you're the one enjoying it, its no big deal. Put yourself in his shoes. If he was doing something with other people and you didn't agree with it, you'd probably get a little bent too. If you need to have the attention of people aside from a friendly outing (because caming is really like online hookups with or without nudity), you might want to evaluate whether you really want the relationship you're in.
Also, I've been there on his side of the story and it is usually an easy and tempting lead in to a meeting, which tends to lead to something more.