Advertising reflects the mores of society but it does not influence them.
As a society I think we express our cultural mores through our politics. We're trying constantly to figure out what's OK and what's not OK. And it's hard because our society is constantly buffeted by gale force winds of technology. Things are always changing.
Now for this book I had to learn the world of the Senate which is really for all that's written about the Senate an unknowing world and its mores and the way things work with subcommittees and all. I loved learning about that.
Humor has historically been tied to the mores of the day. The Yellow Kid was predicated on what people thought was funny about the immigrant Irish. When you're different in a society you're funny.
I have mostly been terrified of listening to scary stories around a campfire. We camp a lot as a family and at night my dad would try and tell us scary stories. This made eating s'mores difficult. The story would start with something like... 'and the old man who lived in these woods...' I would then run back into the camper terrified.
You can't move so fast that you try to change the mores faster than people can accept it. That doesn't mean you do nothing but it means that you do the things that need to be done according to priority.