Did those pictures even work? Must smokers I know, upon seeing a diseased lung, would just shrug their shoulders and light up another one.
Well, no, I don't think so
Than again, how many people who want to buy sweets look at them and go "whoa, too many calories, I'll put them back!".
Argument works both ways - I wouldn't want to buy jelly beans with pictures of an overly obese person on them, either
It's just hard(er) to properly convey the message "this shit will fuck up your lungs, your reproductive system, your health, and your teeth" without pictures, I guess.
I do remember reading in a newspaper somewhere about a study* that showed the ones with text messages about "tobacco will lower the quality of your sperm", "tobacco use can lead to impotence", "tobacco use can cause fertility issues" and those with pictures of breasts ruined by lung cancer surgery, limp penises with caption of "tobacco causes erectile dysfunction" and such to have a much stronger effect than those with more general warnings about lower life expectancy, lung issues, and the like.
Belgian ciigarette packs almost all have warnings relating one way or another to sex because of that. People don't care if they get yellow teeth, they do care if they can't score
*[needs citation]