The subsidies will continue because the politicians believe it is in the vital competitive interests of their nation to do so. They fear (perhaps rightly) that failure to subsidise the oil industry (and others like it) would result in loss of inward investment and jobs etc.
This would, of course, constitute political suicide for any politician and so they find it to be in their personal interest as well.
It is this dually corrupting effect that underpins the failure to enact positive change. It is to this dually corrupting effect that simultaneous policy is the only sensible (and perhaps even possible) answer.
Read the Article at HuffingtonPost