what is the symbol/icon for morality??

Question

and is there anything that can be done to that symbol to show it deteriorating or withering away?

but what is the symbol/icon that represents morality?

lets say a christian symbol for morality other than the cross

Answer 1

it depends on your culture each has there own

Answer 2

Here's some: The Tree of Life from Irish folklore (it often meant someone had "a vigorous spirit"), Ankh from Egypt, Koi fish or Phoenix from Asian tradition (Koi= second coming or change; Phoenix= rebirth or complete transformation) & (as you mentioned) the Crucifix from Christian roots (often used as a symbol of faith much like the star & moon/pentagram form pagan or wiccan beliefs).