The guy wasn't wrong- having some idea of what was there was better than wandering around in the dark until somebody took him out- or he ended up taking himself out. Either way, Rocket didn't focus on his conscience right now.
"Yeah, back atcha, pal-" While his tone tended to sound sarcastic pretty much all the time, his words were sincere. Not so much because of an inflated sense of morality, but something more akin to pity.
That guy was really, royally fucked in this place.
Rocket gathered his things and very quietly made his way further into the corridor, heading for the center cavern. He didn't stick around to see if the bats or the scorpions had their way with him.