From this perspective, J did nothing wrong, and helped solve M's problems. M had good intentions, but hurt R, but had little choice. S forced himself on someone against their will as a form of ransom. R lost both his friend and lover as a result of his actions.
The ranking of S and R comes down to whether you think that S forcing himself on M was intended to hurt R, and if he knew what R would do to M as a result.
I wonder if this had been changed from imprisonment to death for R (and possibly J, possibly not) if R's reaction would have changed, or if not, if it would change the S/R ranking.