As ever it depends. To use the ever-present car analogy, shoddy engineering didn't harm British Leyland - until it did. And now there's no native British car

As ever it depends. To use the ever-present car analogy, shoddy engineering didn't harm British Leyland - until it did. And now there's no native British car industry to speak of. But people don't care about engineering - they care about how your product will affect their lives today. If you can prove to them that it will solve that problem they have, they don't care that it's made out of biscuits.