Ultra-rich

Increasing the electricity use by the world's poorest to cover the bare necessities won't really increase greenhouse gas emissions at all. What we have to do instead is to reduce, all the way down to what's strictly essential, the extraordinarily excessive and unnecessary use by the ultra-rich.

Source: tatoeba (10458741)

“Embossed Ratine"—another of this season's materials—is of such ultra-rich quality that its prohibitive price assures it of a permanently exclusive position in the realm of woolen fabrics.

Source: wiktionary

Such ultra-rich environments allow the student to choose what he will study, when he will study it and how he will study it, and to what criteria of accomplishment he will aim.

Source: wiktionary

There are ultra-rich people all over the world, and if individuals like Mallya have earned what they have, they can do what they want with their wealth.

Source: wiktionary