Marshall, how is your "usefulness" not isomorphic to the word "good"? Useful for what?

I suppose I just want to avoid the preachiness of the word good. It is unfortunately coherent to die for goodness. It is not very useful to die for usefullness.

Useful for what? This doesn't seem like a useful question. Usefulness is obvious and thus no need to ask.

I do not wish to lose my way or be carried away by the bigness of the nominalisation "morality". Occam's Razor should also be applied here - in a pleasant and gentle way.