How does Rex view Bounty Hunters? Specifically those with seemingly no morality at all? (Because I've been stalking you all day and wow you're amazing...)
MORALITY is a sliding scale, he thinks. He used to view the galaxy in BLACK and WHITE ; GOOD and EVIL with NO space for OVERLAP. He used to view DESERTERS as TRAITORS and JEDI as beacons of HOPE. But those were the eyes of a CHILD - he's only a scarce few years past ten, after all - and he's seen TOO MUCH to cling to the same IGNORANCE ... Morality is determined by the INDIVIDUAL, he knows, and he cannot deny the similarities between being a SOLDIER and being a HUNTER.
Though, he cannot see the HONOUR in the latter ... He kills to SAVE, to SURVIVE ; for a GREATER PURPOSE than solely SELF-GAIN. He's IMPASSIVE about the profession, though despite his origins he cannot help but hold those who follow it with an air of CONTEMPT. Those he's had the pleasure - and he uses that term LIGHTLY - of acquainting have been UNSAVOURY, to say the least, but he knows - from experience - how foolish it is to judge the majority by the demeanour of a few.