Honestly, it just made her more stubborn about it, and that has obscured the message she has been trying to convey a great deal. She is failing to be articulate about the point she truly intends, which is that power shouldn't be given out freely, but that you should work hard to acquire it. I said below that there's a certain amount of entitlement to her position, and that she's screwing up her message bad.

Rainbow Dash is, in many ways, more of a jerk than her canon counterpart when it comes to arguing. That's because she spent a year being friends with Ed Elric, and the arguments they had made her interactions here look like hugfests. It is definitely not a positive quality but it is definitely my intention that her much greater stubbornness and obstinacy come across in her arguments. It is something that can (and probably should) be addressed ICly, but when it comes to 'learning a lesson' from the arguments she's had, that won't work. She just digs in more, believing she is right and everyone else just wants Big Powers For Free, even when it bites them it the butt. LyrTwi did manage to talk her down by appealing to friendship and trust, in the most recent one.