Data Scientist has two terms in it : Data + Science. More often than not, people ignore the "Science" part of that equation.
That's the most unscientific thing I've heard in a while ;)
The etc. would also include cognitive science/neuroscience, medical science, earth science, material science, agricultural science, veterinary science, geoscience, food science, etc.
And of course as we all know climate science is fake./s
Generally when I hear a field with the word "Science" in the name I think of it as a more interdisciplinary field. Take Earth Science it draws on different areas of physics (ie wave physics), biology (ie ecology) and chemistry (ie kinetics). Earth science is still very much science it is just doesn't fit perfectly into the more foundational fields.