You are rushing to a conclusion when you don't have the facts. Nicotine, like many molecules and substances can be harmful/addictive in certain doses but life saving in smaller doses. Drink too much water too quickly and you'll die. Arsenic plays a duel role as well. It can kill you but Arsenic Trioxide is used to combat cancer.
You are simply assuming that the use of nicotine is a bad thing.
I have to assume that you have no real understanding of science. biochemistry or physiology. If you had, you would not have made such a statement
Heck, there is a pharma company whose soul focus is on nicotinic receptors. That company is TRGT which was spun out of one big tobacco company.
Please, do a little research before having a knee jerk reaction.
Oh, and Happy New Year! :)