"Whataboutism" helps nobody. Pointing to a very large problem is legit, and saying "what about this over here" is also legit but extremely unhelpful at moving discussions forward.
I'm poor in the US (where the arrow's pointing), and I save money by bicycling and walking whenever I can.
Still disgusts me when I see so many houses with 2- or 3-stall garages and massive pickups and SUVs that serve no other purpose than winning a dick measuring contest.
I'm not saying the curve is wrong, but when you create a graph like that without putting values on the axis it's inherently misleading. Compare the top 10% of that cohort against the rest and tell me what percent of pollution they create, the issue here is disproportionate impact from the minority.