It’s hard to imagine now, but one of NASCAR’s most powerful owners almost walked away before his story even began. Rick Hendrick had steady employment, a nice life, and no need to risk things when he was just 23 years old. But then a rural South Carolina Chevrolet opportunity knocked at his door. Hendrick wanted to leave as soon as he saw what was waiting there. But fate had other (better) plans, and his wife had a huge part to play in it. Rick …