One reason is leverage. Large company engineers are able to focus more on the work they do and let the rest of the company deal with the other stuff. Also, bigg

One reason is leverage. Large company engineers are able to focus more on the work they do and let the rest of the company deal with the other stuff. Also, bigger companies have lots more work to do so the engineers can focus on only a few things. Think about it in these terms; a custom car maker can only make a few cars but a factory can make so many more at a lower cost and higher total profit simply because of the number of cars they can make.