Sanctuary was colonized with the mission of celebrating the unity of the Western Alliance, despite the infighting going on between the richest and poorest members of the Alliance in the mid-twenty second century.  Instead it became a symbol of Alliance largess, protested against in dozens of nations that thought the money was better spent on Earth.  It is a truly beautiful world though, with worlds-class architecture and gardens.  I should know.  I’m a gardener there.