No, the point is in the intrinsic quality - being well made. Usefulness is implied in being a product. A rubbish hammer may be e.g. «useful» for some dozen ban

No, the point is in the intrinsic quality - being well made. Usefulness is implied in being a product. A rubbish hammer may be e.g. «useful» for some dozen bangs in a few weeks, then crumble. A rubbish item will have compromises. A "good" product will be masterful and optimal for function, less compromising for the demanding user.