"More likely to become pack leaders" simply means "more likely to leave and start their own family", right?

Current understanding of wolf behavior is that the "packs" are actually the wolf's direct family, i.e. its breeding partner, their cubs, and their young adult offspring. So the "leader" is simply the father. So is this piece of news saying a (young) adult wolf in a family, if infected with the parasite, is more likely to leave his current family to start a new one?