Read Marketing Democracy. Nothing changed after Pinochet. The same economic and social structures remained, the poor (base of the left) are still marginalized and displaced from influence, but instead of Pinochet's terror the state now use statistics and hurdles like status, education and class-distrust to keep the neo-liberal ideology in power.
The "neo-liberal centrism" is equally authoritarian but in softer methods. Instead of terrorizing the Santiago's Población (ghettos) with police and violence they instead silence them by portraying them as dumb, anti-democratic and radical. They also try to silence them by making them internalize discourses that the new regime was good for them.
It is the same marginalization and political powerlessness.
It argues that only the facade was changed when Pinochet fell. All the same social, economic and political dynamics remain just under new "softer" means of keeping the poor down. It even predicted the recent riots by almost a decade