It is sad that so many designers don't know how to make. CAD software can make a bad design look palatable! It is sad that four years can be spent on a 3D design course without making anything! People who are great at designing and making have a great advantage.
It's a very strange thing for a designer to say, but one of the things that really irritates me in products is when I'm aware of designers wagging their tails in my face.
Apple's Industrial Design team is harder to get into than the Illuminati, and part of the reason is because no one leaves. In the last 15 years, not one of the 18 designers has ditched Apple for greener pastures.