I don't know about yall churches, but my pastors are the first ones to arrive and the last to leave just about every service. They participate in every part of the service there is. They are the only ones I know of who do this.
With that being said, my opinion on this is very biased, so the only comment I will make is it irks the heck out of me seeing leaders not participating, then they get mad when the people don't either. "Get up and give God some praise.." well, excuse me you, were in the back for 45 minutes while we were in her giving God praise. I guess you missed dat huh?