Which Businesses Really Need A "Data Scientist"

Yes, the quotes are intentional. I'm a marketer, so I understand that rebranding might drive up the price, so some programmers and analysts are calling themselves data scientists. What that means is that business people, from executives to HR to line managers, should have a better understanding of the claim and reality. The entire purpose of business software systems has always been to provide business decision makers the KPI's they need to make informed decisions. That was the goal with mainframes and reports on ribbon paper, and it remains the goal on today's smartphones.