Why don't tobacco companies invest in cancer research?

[El_Prezidente]

I was thinking today, Why don't tobacco companies invest in cancer research? It would make sense to try and find a cure for cancer, the reason why people have stopped smoking or never started is mainly because they don't want to risk getting cancer and there can be no doubt that tobacco causes cancer so the tobacco companies might as well give up on trying to convince people that their product is not the cause of cancer. By investing in cancer research it not only makes them look good like their trying to fix their mistakes but if they do happen to find a cure they would probably see a grand return in their investments. I mean the people that do smoke now already know and get reminded everyday that the habit is cancer causing so i highly doubt that they would lose their customer base. What do y'all think?