My little two bits on the topic, not having read what came before:

Religion as an institution: no. History has proven time and time again that religion is a destructive force in society. It leads to xenophobia and violence. This is an indisbutable fact. It is the leading cause of atrocities in man's sorted history.

Spirituality: yes. People need to feel acountable for thier actions on more than an 'I don't want to get caught' level. They need to understand that the price of living an immoral life wieghs on their souls in ways that money and personal gain cannot replenish.

If karma's a bitch, it will be my bitch!