Best to dispel that notion and fast.

"I might have been ranked last, kid, but that doesn't make me 'kind'. I have lines. Not many but they're there.

"Besides, all I really did was drive the truck. I lost one of you kids, in case you forgot. Regardless, if I hadn't gone, César would have since I doubt either of his...companions...can drive stick. Or at all for that matter. César's a non-combatant. He'd be more likely to get himself and the rest of you killed."