Terrible example. Would you rather a professor of finance, who never had a finance job, or a person who has a finance degree and worked in the financial field for 20 years give you financial advice?
That depends. Someone in the business for 20 years may have a company agenda that supersedes your best interests. Investors must be constantly vigilant that their financial advisors have their best interests at heart rather than their own bottom line. Paying attention to academic finance experts that don't have an financial interest in your money is one important way of doing that.
I'm from Louisana and you said working man. Pardon me if my first thought wasn't a financial advisor but a swamp logger.