I would say this is the best definition of an engineer... "An engineer is a professional practitioner of engineering, concerned with applying scientific knowled

I would say this is the best definition of an engineer... "An engineer is a professional practitioner of engineering, concerned with applying scientific knowledge, mathematics, and ingenuity to develop solutions for technical, societal and commercial problems. -- Wikipedia" What really matters is the applied scientific knowledge and ingenuity to benefit mankind. The liability aspect shouldn't be the key differentiator.