I don't believe morals have much to do with an inheritance of values, mostly because mankind, from civilization to civilization, has largely kept the same set of basic morality regardless of where they are or what religion they possess.
Sure, some things change, but theft, murder, lying, etc... they're pretty universally seen as wrong. And in the instances where they AREN'T seen as inherently wrong, it's usually a class-based stance that still sets them apart. Even if you steal from other groups, don't steal from OUR group.
Even if you wiped away all knowledge but the very basics on survival, these would come back in short order as societal hierarchies are redeveloped.
Sure, some things change, but theft, murder, lying, etc... they're pretty universally seen as wrong. And in the instances where they AREN'T seen as inherently wrong, it's usually a class-based stance that still sets them apart. Even if you steal from other groups, don't steal from OUR group.
Even if you wiped away all knowledge but the very basics on survival, these would come back in short order as societal hierarchies are redeveloped.