See its a very tricky question. The guys how make such products need to sell it so have to market it. They use surrogate marketing. they sell music, water bottles, cds etc of the same brand name and disguise the real product well but keeping the positioning correct.
Talking about ethics, that way the company making cigarette is unethical at the first place leave aside surrogate marketing. Surrogate marketing is a way of selling lets keep ethics aside.