Evolutionary Levels: Subverted, inasmuch as Eldrae anthalis and Eldrae kirsunar (which could be read as direct parallels to Homo superior and Homo summus) aren’t markers of more advanced evolution, but markers of increasing degrees of highly sophisticated engineering. And engineering for specific desirable traits, at that.
The Beautiful People: I refer you to the comments about “impossibly beautiful sexy immortal billionaire genius demigods” made under Can’t Argue With Elves. The engineering works, people. However pretty a people the baseline Eldrae alathis were to begin with – and they were – by the time autoevolution reached the very transsophont Eldrae kirsunar, it had gone Up To Eleven. The self-designated Supreme Eldrae and their cousin species in the Empire are self-consciously designed to be perfected, unflawed, soul-churningly beautiful, marvelous to behold, exquisite and/or excruciating in unsurpassed elegance.
(And if you’d care to sign up, they can do it for you, too. Queue for applications starts to your left.)
It’s a sort of inherited status, I suppose, inasmuch as you acquire it – most commonly – by being the offspring of an Imperial citizen-shareholder, although most of it is offered freely to immigrants and, well, anyone who turns up waving checks or cashy money at the right businesses… but since this does represent more or less the entire society, these Beautiful People do, at least those who haven’t yet earned their way into the investor-leisure class, have to work for a living, and many of those continue to anyway.
And yes, the surroundings also match (see: Emotion Bomb and Scenery Porn), because it’s not like they stuck to just improving themselves. Also played straight, again for almost everyone, with regard to the clothing (see: Sharp Dressed Soph), the housing (see: Big Fancy House), the wealth levels (it is a materially mostly-post-scarcity society, after all)…