First of all, let’s not hijack the word “elitism”. The anti-elitism and anti-intellectual movement is getting silly.
A better question: is Waters being wasteful or being arrogance? I do think having a ironsmith making a custom spoon (just for egg) cooking over a coal fire at your home is definitely not environmental. However, there are definitely worse way to ruin our environment than this. This just looks a lot more visible.
Personally, I think, as long as she enjoys the egg spoon and use it often, then it is not being wasteful. It is no more wasteful than a Japanese sushi chef who asks for a custom yanagiba knife (~$600-2000) to slice his fish all day long.
It is her kitchen, so she can do whatever she likes.
This is hell alot better than the raw water movement.