If acts of individuals would drive you away from the Church, why weren't those enough to do it? (Not trying to be a jerk here, just trying to make a theological point.)
I think we had ample warning from the first days of the Church that the leaders of the Church were not protected from their own sinful choices. The only promise made was that the Church and it's teaching would prevail against Hell...not individuals.
Don't get me wrong. I'm sympathetic to how one reacts to these things. I myself left the church for many years. I just decided that just because doctors smoke and get sick, etc., that didn't mean I should stay away from the hospital myself.