Their practical contribution is minimal compared to what they could have done within the past two decades, when they instead spent millions trying to fool us into believing that climate change isn't real.
I'm sure they will finally save us, and not simply profit off the new fad of "green" consumer goods until that goes away in the wildfires, droughts and floods of the next decade, as GDPs around the world plummet due to global climate crises.
But hey, we'll get some neat cars out of it, so it's not all bad!
Good point, if we do nothing at all, our corporate masters will surely save us, because corporations definitely aren't legal constructs designed specifically to generate profit and nothing else.