Like you said, they aren't paid to ship code, they are paid to ship features. And those shipments usually have hard, arbitrary ship dates that does not reflect

Like you said, they aren't paid to ship code, they are paid to ship features. And those shipments usually have hard, arbitrary ship dates that does not reflect the time needed to code and test them. So in order to do your job of shipping features, at times you need to use pre-written and pre-tested code, because if not you'll fail to ship.