In the case of the captain of the ship, true enough. The important bit is your quote from the Qur'an;

Allah hath not chosen any son, nor is there any god along with Him; else would each god have assuredly championed that which he created, and some of them would assuredly have overcome others

Does that verse not say, or at least imply, that it is in the nature of gods (any more than the one being purely hypothetical, of course) to 'champion' their creations and attempt to 'overcome' others? Both of those are human concepts, and might apply to human rulers, but why a god would need or might want to do either is unclear - at least to me. Either God/gods actually have those characteristics or they are being anthropomorphically assigned to Him/them. If the scenario is an analogy (?) then what is it an analogy of?