Those $30K pay for the food and shelter of a lot of people, from those that mine the primary material, to those that assemble the pieces, to those who move the pieces from one side to the other, to those that advertise the item. So yes, $30K is a lot for many of us, but most of the cost is material (it's not built with cheap plastic...), and production and assembly. Thanks to items like this, we don't have more people looking for food in the streets exactly as thanks to many other cheaper items we don't have more people looking for food.
However, if someone feel compelled to pauperism about useless stuff, they might lead by example by selling their Apple stuff, canceling their streaming subscriptions, etc.