Credit scores are probably the most useful metric for a person in general. The reason isn't because it's an assessment of creditworthiness, but it saves the time interviewing each person for each loan, asking for quite literally thousands of pages of documentation proving they are creditworthy, etc.

If you recall how these things were done before credit scores it was not pretty. Without them lending would virtually cease to all but the most obviously creditworthy people.

I generally agree the system for credit scores needs to change. In particular it should not be controlled by a veritable monopoly. But this does not discount the utility of it in general.