newbee: So a person shouldn’t be a chosid of a Rebbe who wouldn’t marry his children into the chosid’s family or be part of a kehila where the Rov wouldn’t marry his children to a baal habayis since the Rebbe and the Rov want to marry their children to other talmidei chachomim or rabbinic families?
You wouldn’t want to be invited to Rav Elyashiv for Shabbos since you would be pretty safe to assume he wouldn’t marry his children (or grandchildren) to your children?