None of the elements are chosen because they exemplify the element which they are the chosen of.
Twilight was not a master of friendship, which is what magic is.
Applejack sure as fuck isn't honest.
Rainbow lacks the wisdom to be truly loyal.
Fluttershy is more of a pushover than anything, which is a stance she takes because she's actually just unhinged if left to her own devices.
Pinkie is fueled by manic depression.
Rarity is fueled by glory and control.
You have a misunderstanding of what it means to bear an element. All the element bearers are obsessed with their aspect.
Pinkie is directly obsessed with generating joy.
AJ is directly obsessed with honesty.
Twilight is directly obsessed with magic and also originally invested her trust and affection very very strongly in a very select few ponies. She still has always tried to better conditions for everyone, and most of the show is literally about her studying friendship and widening her friend-group.
Rarity uses generosity as a weapon and is obsessed with the "betterment" of things, which is generous in a way.
Fluttershy lives by kindness as a creed.
Rainbow dash is exceedingly concerned with her social status and praise. "Are you a spy?" Is the kind of thing you ask an outsider. It's more like she is the element of "power structures" but that isn't really as catchy.
also, how many times have you made this basic thread?