I believe the sisters were so tied up emotionally in the wt movement, that their hormonal responses were totally skewed in favour of true believers. Even gammy males like me would elicit an alpha response.
I could have married legal secretaries taller, richer, more learned, educated then, than me, solely because of the luster that zeal for the wt cause gave me. imho. (no not an opinion, some of us had to duck out from the pressure. )
Favoured diversion: " belong to the AA club" marriage? after armageddon"
P.S. probably not a strictly wt thing, it is the religious BS. , an evolutionary tick that gave success to those with a dedicated mind to a strongly bonded Brother/ sisterhood.
breeding , survival of the most religious.