Disasters are known to create the habit of man-killing in large cats such as tigers, so perhaps they do the same thing to wolves. It is clear that wolves do not regard humans as prey. Wolves learn to hunt by experience and not by instinct. They never have the opportunity to learn to hunt people. More important, people are predators themselves.
People stalk their way through the woods and across streams in the same quiet manner as wolves.
Many human actions may warn wolves that people are the hunters not the hunted. In North America there are few stories of wolf attacks on humans. In spite of painstaking examination of all claims of wolf attacks, not a single story has ever been proven true. The man assumes he is about to be attacked. Somehow he escapes with his life.