To devalue life, especially sentient life, is to approach evil. To profit off of a creature's ruin is quite evil. The Fetts are both definatively mercenary assassins. That's evil, and any culture that embraces such actions is evil as well.
To "cross the line" in D&D, the PnP original that started all gaming, an assassin must prove his evil alignment by killing for pay, thus qualifying for that prestige class (as opposed to basic thievery as a rogue).
Boba has been listed with 9 Dark Side points in the SW rpg. He is my favorite evil character.
"Be Like Boba." J. R. Duart -2006
WWJD - What Would Jango Do?