Not always. Jews hire and fire their "leaders". And in most Orthodox congregations, a fair percentage of the men have recieved smicha, ordination, and can be addressed as Rabbi. They just chose to work at semething else. So the congretional Rabbi can't just spout tings off, a lot of his congregants know as much and sometimes more than he does.
Jews don't blindly follow. We argue, incessently. There is a lot of truth in "2 Jews, 3 opinions".
Only 3? bah, we have four here At least we don't actually go to war with each other like some other religions do!