Is intellectualism moral?

Does our collective intellect exist in an insular framework that is incapable of accepting the limits of scientific method? Is this notion heresy? It seems there's currently a level of observation and manipulation that has fostered a euphoric state that has not been experienced since the conception of rapture.

If science replaces religion how do we exist without a moral centre? Or is morality logical? Or is our intellect a form of cognitive dissonance?