I'd say you're close but off. A lot of it is nullified by Communist states that don't give a fuck about Climate Change because Watermelon Communists don't give a shit about pushing Communist states to adopt a green energy policy. This is because those Watermelons are paid to do that by the Communists themselves.

It's the same thing that the Soviets did with the "Peace War" program. Nuclear Proliferation was never taken seriously by any Communist states, and was typically a symbol of national pride. The Soviets themselves only supported anti-nuclear proliferation in order to: a) reduce the disparity in stockpiles that they knew secretly existed but publicly denied, b) centralized the USSR as a monopoly on nuclear weapons to other communist states. Almost the entirety of the anti-nuclear movement in the west was funded, supported, and promoted by the Communists so that they could hopefully have a better chance at winning in a nuclear exchange, which many had been calling for for decades.

As for lead, it wasn't just cars, it was everything. Lead was all over the place. The dramatic health effects and environmental damage that the vast proliferation of lead had were extraordinary. I'm sure it benefited plenty of other monied interests, but the end result really was better for everyone, and I think a lot of other monied interests actually saw the danger that it posed.