I feel like you're ignoring the size of each of these impacts.

Sitting around a campfire once a month will likely increase your cancer risk. But it increases your cancer risk way, way less than smoking a pack of cigarettes every day.

Similarly, the World Health Organization is confident that smoked meats increase cancer risk. But that makes no statement about how much more likely you are to get cancer. I'm confident that eating undercooked chicken raises my risk for salmonella; I'm equally confident that eating a raw and expired piece of chicken also raises my risk of salmonella. But I would not say that each of those raises my salmonella risk by the same amount.

See the difference?