Yes, Dogmatic religion is. Faith however, is not. Faith can be means to sustain life in extreme conditions. There are monks that starve themselves for weeks at a time through faith. That said, i believe organized religion play on our need for faith and abuse it for there own power.

Without intelligence you cannot articulate your opinion on this subject or even comprehend the question. Surely that in itself is enough to show how important intelligence is. If thats not enough then let look at the fact that we are communicating through electrical signals across the whole world when 100 years ago people barely had electricity in there houses. Intelligence is the driving force of society.