why is tobacco evil and obesity okay?

my sister in law had to be rushed to the local hospital early last week. No one in her family smokes, but she suffered a massive heart attack. as i stood outside the hospital entrance, it was right at change of shift, i counted 34 hospital employees, people wearing name tags, scrubs and various articles of medical paraphernalia attached to cords and chains around their necks. 22 people in the group were grossly overweight. signs posted everywhere, in the lobby, public bathrooms, corridors, parking lot, etc, boasted that the hospital was a "Tobacco-Free Campus" and threatened fines for anyone caught with the demon weed. No such signs threatened Fat people using the Coke, Candy, or Snack Machine. And, please do not talk about Second-Hand smoke.There is no evidence, according to the Surgeon General and numerous study groups, that Second-Hand smoke is harmful. And, Tobacco Products include many smokeless and spitless products. Why is it more socially acceptable to die from Obesity than from Tobacco?