I believe Michael still had the “destiny” of a life away from Mafia on his return from Sicily as Michael was cleared of all these 'false' charges of killing McCluskey and Sollozzo if Vito hadn't dragged Michael deeper into criminal life
Certainly Michael had choices not to be a criminal at each stage of his life.I started a thread on that subject:
http://www.gangsterbb.net/threads/ubbthreads.php?ubb=showflat&Number=872539&Searchpage=1&Main=34326&Words=%2BSorry%2C+%2BPop&Search=true#Post872539
But, he chose the criminal path each time. His destiny? Maybe...