If you believe that creation is a result of the Big Bang then you should also accept that the works of Shakespeare is the result of an explosion in a printing factory !!!
The marvels of creation is just too fantastic to be purely accidental don't you think ???
I don't think it necessarily follows that the big bang was an accident. It's entirely plausible/possible that the big bang may be the mechanism by which god (if there is one) may have created everything.