The badlands world of Rigel presents several challenges to its population. The absence of indigenous life above the microbial level means that food must be either imported from off-world or grown locally from non-native stocks.
Unfortunately, Rigel’s soil is slightly toxic. Elaborate cleansing and filtration systems are necessary to provide potable water and arable land. Rigelian social groups struggle for control of these resources; the losers get a small share to prevent open warfare. The needed resources have become the foundation of the Rigelian monetary system.