Wolves have a natural fear of humans leading them to avoid them. A few years ago, norwegian researchers published a study of all known wolf attacks over the past few decades, which found that after rabies habituated wolves (i.e. wolves used to humans/wolves fed by humans) are responsible for most of the attacks on humans. So deterring wolves is actually one of the best ways to prevent human-wolf conflict. Especially since rabies is virtually eradicated in the Netherlands.