when people talked about science and engineering it was all about what they produced. An engineer was great because they figured out how to make the more efficient, more reliable widget that would make our lives easier and more productive. It was all about the use value.
not disagreeing with your overall point but the focus on use, and not stated but I think to some extent implicit, on making stuff is kinda the distinction between being an engineer vs a scientist. You can have the same education/skills but if you aren't planning on bringing something to production/market you would most likely describe yourself as being in research.
Orbis