On classes in fantasy societies

In the world of The Ironwood Staff, there are classes or people, in all races. What I wrote below started as a meditation on 'inequality'', and this is what came up, applied to that world. As some background to the scene, the Eladi appear as Celadi (settlers from across the seas), Oreladi (the original inhabitants of the land), who didn't flee when the kchabani came but became nomads, and Moreladi (the original inhabitants who fled to Greenland in the First Foul War), who have now returned to retake their ancestral lands.

'Let me tell you about poor people,' rumbled Tulan. 'You might think of them as of no account, but the One, who created the gods, hears their prayers - it is said. Those who have little, they come face to face with their failure every day, as soon as they wake up in their poor houses. People of Patrician class hide their own failures behind fine hangings, or thick stone walls, and they use gold and silver to make up for them; but just because they can ignore their sin doesn't mean they become perfect. Their own evil is only hidden... in the dark - and like mould and decay, it grows best in the dark.'
He had their attention. 'Don't be too quick to dismiss Oto's people. Is a nomad of the Whitewaters really worse off than a working elado in Greenland, a quarryman, or a lumberjack? There would be times when an Orelado longs for food that he didn't have to hunt, or gather, or barter for. In winter he might wish for a roof and a stone fireplace; but a rich merchant in Ferndale has to talk and make deals and take risky decisions, six days a week, and never sees the light shift and change in the grass of a morning. Which would you rather have?'
There was silence for a while. 'All people are not the same, unless it be that we are all children of the One. Each class of people does things that the others need done, and there would be no Kingdoms without them. Our job is not to look down on people, nor to do evil out of envy. Our job is to do good... whatever we can, wherever needed. Any less, and we are not doing what we were made for.'