The billions spent globally by the tobacco industry on promotion, sponsorship and advertising lead to increased tobacco use - that's common sense and confirmed by economic studies.
More smoking leads to more addiction, more illness and more early death.
By increasing tobacco consumption, tobacco advertising kills people, so banning tobacco advertising will save lives. The tobacco industry maintain that they advertise to persuade smokers to switch brands and not to persuade non-smokers to start. This is complete and utter nonsense. The industry knows it is nonsense. I am always amused by the suggestion that advertising, a function that has been shown to increase consumption of virtually every other product, somehow miraculously fails to work for tobacco products.