"You want revenge. This is something I can easily give you. There are others that could perhaps assist me but their motivations are far more nebulous. They could just as easily attempt to turn me in to garner power in the ship's hierarchy. With you, you want something I can give you, and I want something you can give me. After you obtain your revenge and your enemies are dead, I can drop you off with a great deal of credits at the nearest interdimensional port to travel anywhere in the Multiverse you want. It can be a very clear and easy transaction, with very little reason for either of us to stab one another in the back, as our goals are not at all at odds with one another."

Another alien head-tilt. "It is akin to hiring an assassin. There is always a chance they might turn against you, of course, but most will simply fulfill their required role and take their payment. I can easily 'pay.'"