"But there's no thing that's worth as much to me as a friend"

Rainbow Dash said it on the train ride back to ponyville after she learned that there's absolutely nothing that is more important than her friend. After all, she's the element of loyalty, and that makes that true, right? But she's not sure, would she really be a good friend if she values something more than she valued her friends? Nah, of course not... right?