Is inequality actually the problem when it comes to carbon? Just as a thought exercise, if everyone on earth, or even within each county, received an equal share of GDP, I suspect emissions may increase. You’d replace the private jets with more of everything else. Inequality is a major issue for a host of other reasons though, absolutely.
“Electoral pressure” just means regular people don’t actually care that much, no? That seems like a big part of the problem to me.