Because of this, there is a huge gap between rich and poor. Many people in Nigeria make between US$480 and $645 in comparison to politicians who make an average 50 000 dollars a month. Further, because the money from oil, that is their main source of revenue, goes into the pockets of politicians and people inside the oil sector, not much money is left to be reinvested into the people, as can be seen in the case of Shell and Eni.