Translation: People in the US should pat themselves on the back and feel enlightened because they have a toilet and modern sanitation. Not only is having a toilet a convenience, but a statement of equality and fairness. Articles like these help Americans feel that the US has a moral high ground, which helps sell wars.
I agree that's one perfectly valid way to interpret it, and I can see how articles like this can have that effect. It does seem like the author had something else in mind, though.
edit: and most involve quaint stories about the third world like this one, often pertaining to women's rights.