I understand where you're coming from but is there a qualification for "scientist". Is Mark Zuckerberg or Patrick Collison considered computer scientists? Is Richard Branson considered a business man? Is Elizabeth Holmes a business woman? She runs a business which (arguably I guess) is doing science.

I don't really think a scientist is a term that demands credentials. Obviously, specializations and distinctions in the field do, but you can certainly be an engineer without a degree and conduct science without one.