It's a good argument--and one that, normally, would have reminded Chara of what's really important.

In this case, though... Chara gives their partner a hard look.

"I don't really have a choice, Frisk." Chara stares briefly at a crack in the pavement, then shrugs it off. There's not much else to say; Team Rocket doesn't really have an open-door policy.

And if they keep it up, they can be promoted. And then they can figure out what's really going on.

But they don't want to admit they don't know right now. It's... kind of embarrassing.

Plus, it's Frisk. Frisk is too good a person. They won't like any answer Chara has. And Chara can't leave Team Rocket anyway. So it's better if they just don't make a big deal out of it.