It's as Wormerine says - Larian have decided on a fir, fixed and quite visibly larger-than-life personality for each class, and they map that onto the player character with the class dialogue lines - they don't care what personality your personal character might actually have - if you want to say something relevant to your class, you have to say it through the personality that Larian have envisioned.
[I thought it was some fun wizard/sorcerer rivalry.
Gale doesn’t seem upset by it.
I agree - Gale actually seems a bit wistful about it at times, even - appreciative, but often responding in the way you might talk to someone who has something that you do not, but want.
Consider also - Gale was an arch-wizard, and developed a personal spell that allowed him to actually feel, tangibly, the flow of the weave directly - he had to develop this spell because that is something that wizards traditionally don't actually do or experience, not in the same direct way that sorcerers do... it seems like it's not a high level spell, but it is a complex one that doesn't always work quite right (or maybe this is a testament to his reduced abilities), but when he's talking to your sorcerer, he's constantly aware that he's talking to someone who just
has that always-on, all the time, as easy as breathing... and what he would not give for that. At least, that's the impression I get.
