Smoking is harmful to health. Why did humans invent cigarettes?

Smoking is harmful to health, and indoor smoking affects others. However, the habit of smoking didn't begin until tobacco was introduced to China in the middle of Ming Dynasty. The Ming government specifically ordered smoking to be banned. The more curious people are about this thing, the more they want to experience the feeling of smoking. The crux of the smoking problem is that it harms your health and you continue to smoke. When tobacco leaves were first discovered, Europeans thought that chewing tobacco leaves could cure some diseases. Later, with the development of science, people know that smoking is harmful to health. However, tobacco leaves have become a commodity in bulk trade, which has created rich commercial profits, so tobacco companies try their best to cover it up and publicize that smoking will not cause too much harm to people. To put it bluntly, profit and self-anesthesia let you know that smoking is harmful to your health and you can't quit.