4. If you were the priest of levite…
From a religious standpoint if I were one of those two, I might have felt sympathy for him but crossed to the other side anyway. Touching him could / would break Jewish purity laws. I must remain pure to minister to the many, not the one. Also it could come down to fear and just not wanting to get involved. Who knows who could be hiding in wait? The same thing might happen to me, etc. Fear of what ifs, and religiousing / spiritualfying it away may be to blame. Just my two cents.