My father-in-law was ex-communicated (long before I met him). When I met him, he had been re-baptized. He never was able to get any further than that. He never got his priesthood back, and was basically told not to reapply unless significant changes were made in his life. He was disfellowshipped again later and now has been baptized into a "Christian church" (his words). Basically, he has a problem keeping his ****** in his pants, especially while married. I personally believe that if he is denied entrance, his actions will be a bigger problem with him getting through the pearly gates than his membership in any church will. Not that I am a judge in any way.
I think there is a lot to be said about this. I think the Church in general expects too much out of a lot of their leaders. And so many do it out of fear of being damned or judged harshly. As the Boy Scout leader, should I really use up my only week of paid vacation to take the scouts on a week long camp and not go on a vacation with my family? There are some in the Church who say yes to this. I say blow it up your ***. My priorities lay with my kids before someone else. I have seen so many members base their actions and decisions on what others in the church have done or what they think they should do. It's the "spirit of the law" vs. the "letter of the law". Should I not go to my nephews birthday party at Chuck E Cheese on Sunday so I can "keep the Sabbath holy"? No, I go to the party and have a crap load of fun playing games and eating pizza with him.
I think the bolded part is the key. If you read the Church manuals, and actually do what they tell you to do, then callings are easy and not that time consuming at all. Even for a Bishop. If you decide that God has anointed you the Savior of the South Utah Third Ward and are going to spend every night bending to every whim and cry from the congregation...yeah, it sucks you dry.
I had one Bishop who followed the Bishop's handbook for Sunday Leadership meetings. He outlined it his first week in the meeting. He said that if you had something that needed to be discussed this was the Church Handbook Policy:
1 - Call the Secretary before Thursday. Leave a BRIEF message explaining what the issue was, and if it was A, B or C level importance (A - needs to be done immediately, C - needs to be done sometime in the future).
2 - The Secretary would show up Sunday with a list of A, B, and C issues. The meeting would start. No scriptures or inspirational stories that take 30 mins to get through. Just work. Prayer, and then onto issues that fall in the "A" category. Once those were finished, if there was time, we would move onto the B, and C Categories. If we were out of time, then we dismiss and come back the next week (so, yes, some B issues would become A issues).
3 - The next week, the Secretary shows up with his list, but at the top of the list are any things that were to be accomplished from the last's weeks meeting. You cover that first, then the A issues, then check time, the either close or continue until time ran out.
The first Sunday came, no one had called the Secretary. The Bishop opened with prayer, looked at the list (which was empty), then called someone to say the closing prayer. The Relief Society, Elder's Quorum and other Presidents were furious. They had members of their groups that needed help. The Bishop opened the handbook, showed them the outline for a meeting, reminded them he went over that the week before, and then looked at the list again. Then he left.
From that moment on, every week the list was full, assignments were given and followed up on, families were blessed, and the meeting never took longer than 30 MINUTES. It was amazing.
My point in all this rambling is that, especially in Utah, the church is a HUGE part of a lot of people's social lives. And because of that, you do too much. Not to impress God, but to impress the bishop, or your neighbor, or whoever and you feel burned out or destroyed.
Just do what the handbook tells you to do. You will not get burned out, you will not be overworked, and you will do what you were put there to do. Let other people do their callings (and btw, if you let others do their callings, and they don't do them, and you don't help, that's a good thing. It then lets the leadership know that they need to make a change and get someone more competent).