Colours of the desert

Why is it wherever I go in the gulf countries I only see the colours of the desert? I imagined Qatar will be different, but its not, it has the same dull colour of sand, all over the place and including the new buildings and those that are refurbished to look old, or built newly but with the old style. Is it us the gulf people or it is the architects that we bring from overseas to build for us? do they think that since we live in the desert we must camouflage all our buildings so we do not see them when we are in the sky? or do they think that we love that terracotta colour? or is it because its cheaper?

These are photos I took today, of course its an amazing place, we must not forget that the country grew ten fold since 2007! and its growing taller, wider and smarter.