Unknown: of course it would make a difference, just as my behavior would be different if I had billions of dollars rather than next to nothing or if I were immortal rather than mortal. It doesn't have anything to do with "morality" though.
For example, if I had the power of invisibility (and immateriality) and were able to plant a listening device in the oval office with no chance of getting caught, I would do it in order to publicly expose the lies and manipulations of the Bush administration and give proof of the willful stupidity and rampant dishonesty that many of his former administration have stated they witnessed daily -- not because I think there is some objective code of morality that they violate but because I think the world would be a better place if their lies were exposed and such people did not have such power. (Note: I don't think it would be a better place in anything like an objective sense: that is just my personal preference, and if I had the power to make it so, I would.)
(Hello, NSA: this is all purely fictional, of course.)
To those who say "Nothing is real," I once replied, "That's great, but how does the nothing work?"
Suppose you learned, suddenly and definitively, that nothing is moral and nothing is right; that everything is permissible and nothing is forbidden.
Devastating news, to be sure—and no, I am not telling you this in real life. But suppose I did tell it to you. Suppose that, whatever you think is the basis of your moral philosophy, I convincingly tore it apart, and moreover showed you that nothing could fill its place. Suppose I proved that all utilities equaled zero.
I know that Your-Moral-Philosophy is as true and undisprovable as 2 + 2 = 4. But still, I ask that you do your best to perform the thought experiment, and concretely envision the possibilities even if they seem painful, or pointless, or logically incapable of any good reply.
Would you still tip cabdrivers? Would you cheat on your Significant Other? If a child lay fainted on the train tracks, would you still drag them off?
Would you still eat the same kinds of foods—or would you only eat the cheapest food, since there's no reason you should have fun—or would you eat very expensive food, since there's no reason you should save money for tomorrow?
Would you wear black and write gloomy poetry and denounce all altruists as fools? But there's no reason you should do that—it's just a cached thought.
Would you stay in bed because there was no reason to get up? What about when you finally got hungry and stumbled into the kitchen—what would you do after you were done eating?
Would you go on reading Overcoming Bias, and if not, what would you read instead? Would you still try to be rational, and if not, what would you think instead?
Close your eyes, take as long as necessary to answer:
What would you do, if nothing were right?