I think the author used the word "selected" in the sense of privileged (it is exaggeration, maybe even "chosen" would be ok).The chosen often means the chosen few, i.e. a small number of privileged people/countries. It also frequently has a religious context, e.g. chosen by God.
I would therefore avoid it and use for the Selected XXX. What is represented by XXX?
The plural of water I also find odd.
I don't know what you mean by inadequate advantages.