While I'm sure credit scores can give a hint as to the character of a person, it may be totally off. Someone like my Dad that pays cash for everything had a zero credit score. The only way he was able to get the one credit card he has is that the local bank could see his large accounts. He never uses the card except for airline tickets or a rental car, but pays off the balance right away.
I think it's a sin that insurance companies quote rates based on a credit score, and an even bigger sin that some employers will not hire someone with bad credit.
If everyone were like millionaire Dave Ramsey their FICO score would be zilch, ie: Bad Credit or No Credit. He doesn't use credit cards at all, only debit cards.