Please focus on the first part of my post. The proper approach to this situation is to reject that you can be denied your mind. Brainlock can only occur at the hands of another, through force or fraud, and to say otherwise is accept the premise of a malevolent universe.
Is dignity an intrinsic value?
Dignity is a value that is instrumental in achieving happiness. The only intrinsic value is life.
With my life being my standard of value, is immediate death more valuable than living knowing that I am a “murderer” ?
Yes; if you wish to live as a man.
If I kill someone in self-defense, does that make me a murderer anyway?
Of course not! But, breathing communal air that nobody had the foresight to stake a claim on ahead of time of isn’t the innitiation of force. Nor does your need of that air constitute a claim on the other man’s life.
If I killed a shark trying to eat me, would that make me a murderer? Does having just bought a tuna sandwich make me a murderer? Is a lion eating a zebra a murderer?
Let’s not be silly. One cannot murder an animal. In the case of undersea combat, as in all combat, only the person who initiates the violence is guilty of abandoning human behavior.
In the struggle for survival between organisms that are not in a position to survive by reason–which this scenario is all about–kill or be killed is the law of nature.
My case depends on the accuracy of the thread’s title, “rigged, extreme, impossible hypothetical.” You always have your mind (barring human intervention). Lifeboat scenarios are designed to retreat in the face of solutions like Kirk Cameron in the face of scientific evidence. The purpose of the retreat is to attempt to prove that altruism is necessary for living life normally.
This point is important, so I will address it again; lifeboat scenarios are an attempt to prove altruism is the basis of morality. Once this is done, the person presenting the scenario will expect you to hold that altruism is the basis for normal ethical behavior.
If you have access to a copy of the Virtue Of Selfishness, please go back and re-read the ethics of emergencies (as I have). Rand’s point is that you cannot draw conclusions from emergency situations and apply them to normal life; not that you cannot apply ethics to emergency situations. In this case, to concede that you would attack is to accept the validity of the hypothetical, the prudent predator principle and altruism. On the other hand, to deny there are any situations where you must abandon your mind to nature serves to expose the hypothetical as arbitrary. I’ll grant that it is cheating, but Kendall pointed out that the game is rigged; you have to cheat to win.