Yes there was bloodshed and heartache, but the turmoil didn’t stem from petty people vying for power, money, or ego gratification. The four khalifas and Mohammed’s close companions who formed the core of the Umma in this period were honestly striving to make the revelations work. Each of them had a handle on some essential aspect of the project, but no one of them was big enough to grasp the whole of it, as Mohammed had done.