Does a frum Rabbi do anything other than attend simchas and speak on Shabbos? I imagine that Reform Rabbis do all the Rabbinical stuff, just little to none of the halacha stuff. They are also often the spiritual leaders of their Temple’s day school and in charge of curriculum.
In every Jewish wedding, someone is pregnant. In a frum wedding it’s the mother of the bride. In a Conservative wedding it’s the bride herself. In a Reform wedding the Rabbi’s expecting. And in an Open Orthodox wedding it’s the chosson.