Why might a preventive remedy often be more valuable than obtaining compensation for past damage?

It stops future damage entirely before it can be inflicted

Preventive remedies offer the significant advantage of neutralizing a threat before it results in actionable harm. While compensation or redress seeks to make an injured party whole after an event, it cannot undo the experience of the damage. A preventive remedy, such as an injunction, stops the harmful activity at the source, thereby preserving the status quo and providing a higher level of protection than waiting for harm to occur.