Well I don't know about all THAT, but...
1. "individual morality" is, nonetheless, relationally dependent on 'the other'.
2. Dialectics can be a useful tool in examining the dynamics of almost any structural process through time. (even nature & evolution).
3. Considerations of 'Absolutes' or 'First Principles' are not required for a socialist perspective.
(on the other hand...flights of fancy are fun)