With respect to 'alpha of the pack' considerations am I right in inferring that Twilight 'Wolves' differ from actual wolves in as much as they actually have an 'alpha' rather than an 'alpha pair'? Descriptions I've seen from the Twilight universe seem to be more in line with, say gorilla social structure than wolf social structure.

I would blame any tendencies towards patriarchy on the primate side not the 'wolf' side of the magic (or just on Meyer).