The problem is again the tendency to generalize. A small number of the "wealthy" stepping up to address climate change does not mean that the "wealthy" are stepping up. You made a similar mistake in generalizing the "people".
The only thing which matters when considering "The People" is their aggregate "generalization" -- contrasted with these uber wealthy where a handful of them can make an actual positive impact on climate change where the people failed. Sure, plenty of people are gung ho about making a difference, but if their sum doesn't add up to actual change then that's the aggregate reality.