If you left without permission, or you didn't let anyone else know you were leaving during an illness, then there could be a reward for your return. [Not that he's implying he would follow through necessarily. Only stating facts.] Whether or not you would be missed depends on the people who may consider you "useful."

[He shakes the bottle in his extended hand.] I'm not with anyone. I'm a Level Two. [But he doesn't say he requires supervision on more extreme missions. Embarrassing.]

The RAC hires whoever can do the job.