First, as you well know its "patents". Second, this is well documented. Go look it up before you continue your oil industry apologetics. Oh, and go lookup the oil companies well-documented and disgraceful defense of leaded gasoline as well. (
Leaded Gas Was a Known Poison the Day It Was Invented)
The fact is, every business will act in its own self-interest .. that's the free market for you. But it is the responsibility of governments to regulate the market sufficiently to prevent abuses, especially when businesses get large enough to challenge (or, worse, control) the government. You seem to think the oil industry is some kind of benevolent and wise exercise in philanthropy, while accusing those you disagree with as painting them as devils.