Uh..... this is an interesting thread....
My only point to consider - who said, in any book anywhere (I am really asking), that diamonds and "gold" had any special value in the SW universe? Why does gold have any significance there other than that it looks shiny?
The fallacy I see you committing, Sordid Dreams, is that you assume that because our universe values these things, the SW universe values them exactly the same.
Beyond that oversight, I like the arguments from both sides.
Buddhist temples have lots of bling around them.... do we deny that they live ascetic lives?