You’re mistaking the reason behind Mika’s actions.
It’s not about respect or trust, it’s about fear : She is terrified by the idea of seeing her hue darkens. She even refuses to exchange with people with high Crime Coefficient for that reason.
That’s why she’s paralyzed and is unable to take any action.
That’s still stupid and annoying, but it makes more sense.
Ironically, that would makes her really weak to Kamui’s influence.