Gee, now people who give a damned about the environment are only in it for the money. Same thing for us morons who used to go down our streets picking up the trash thrown out the car windows. We must have made a lot volunteering to clean things up. This mindset that people do things for one reason, money, is counter productive. Perhaps that is your sole motivation, but I can assure you it is not the only motivating factor out there. Some of us like being able to catch fish, and better yet, eat the fish we catch. Try doing that in the Androscoggin river 20 years ago. But the evil EPA required the mills and people who lived on the river to stop dumpping their crap in the river, which cost everyone involved money. If you ask me it was well spent.
I do not advocate or want to go back to othe stone age were emissions are concerned, that is the all or nothing argument which holds about as much water as a strainer, but I do enjoy cleaner air. I'm only 50 and I can recall easily how nasty things were when we were in Boston when I was a kid, and when I lived in Philly and Houston during the early eighties I couldn't beleive how nasty the air was, especially in Houston.
Do I want to see the cost of cars go up massively to reduce particulate emissions by a small amount? Heck no!!! But we certainly will never reduice emissions if we do not try, and a corporation will never try if it costs money, so they have to be forced to do so. Why would they try, it costs money, and a corporation is designed and built to make money, as it should be. Many of us live in the country because we love clean air, rivers we can fish and land we can hunt on. Most of us would not even consider dumping our garbage in the woods or on the roadside, so I don't understand why there is this aversion to having clean air when it fits in nicely with the lifestyle we love.