AFAIK the advanced consumption habits of the rich come mainly from energy consumption. Like they have (multiple) giant homes so they have to heat and cool them. They fly their families all around the world whenever all the time. They have big fancy cars that use a lot of gas and drive them as much as they want.

But as for, like, commodities, they don't necessarily consume significantly more. Like they buy pants more often and the ones they buy are more expensive, but consumption of pants doesn't grow geometrically with wealth. Like they do consume more goods but they're roughly on the same order of magnitude as other people.

But I'm not an expert I'm dumb so take this with a grain of salt.