I want to be clear that I'm not trying to be condescending here... But Orpheus and the Emperor can't possibly know when I made that decision.

It turns out, I decided I was going to save Orpheus when I clicked start. The mechanism to get it done required me not doing things according to his personal code of honor, but I'm sure he preferred what I did over having his brain eaten by Illithid Karlach, which is another option that was on the table.