seeing as a Lightside Bounty Hunter still helps the Empire do all the terrible things across Tatooine, and Balmorra for no reason other than money. But the entire first act is nothing but the Bounty Hunter hunting and murdering people for sport.
here you have it:
A bh does things for money, it's his job to hunt bounties it doesn't matter if he's a light or dark side character
The difference between this two is, that the light side bh does only kill achieve his goals while the dark side bh will kill and torture with pleasure.
Both kill for their money.