Ok, so let's assume that only those 15% are actually innocent. Is that a low number? If yes, then what if it was 20%? 25% when does it stop to be ok to ask inno

Ok, so let's assume that only those 15% are actually innocent. Is that a low number? If yes, then what if it was 20%? 25% when does it stop to be ok to ask innocent people to potentially lose their jobs, custody of their children etc or put themselves una debt spiral instead?