Why did Her Majesty forsake Solomon Islands?

I've been to Solomon Islands. While I was on the plane, I was expecting to see a place like paradise, because of it's location in the Pacific Ocean. But to my dismay, Honiara, the capital city is very dirty, garbage and spit on the walls that stain red is what I saw. Very dusty and most roads are not paved. Everything is very expensive and I did not see a single store which is not owned by Chinese. Local people work for them as shop istants. No decent restaurant in Honiara just one hotel with roof made of coconut leaves where tourists stay has overpriced hamburger and coffee. It seems to me Her Majesty was not interested to improve the lives of the Solomon Islanders