It sure does. As much of a rivalry Knights and Battlemages have, Knights tend to be held in higher regard among the citizens of Belisio due to what they represent and I can easily see mages envying them for that.

As for cybernetics and such, that's also fine. Quite a few Knights and Battlemages would have cybernetics themselves due to injuries sustained in battle. It's usually just prosthetic limbs and things of that nature though, nothing as extensive as the Spectres with the implants and injections that give them their psionic powers.

I'll say this though, it's a little odd for a mage wanting to be a Knight when they're exclusively all masters of Ki, so perhaps we could say that your character is a late bloomer?

Like, maybe they wanted to be a Knight as a kid, but after realizing it was never going to happen due to their condition, they experienced a highly intense emotional outburst and their power as a mage finally manifested itself by accidentally setting the room on fire, or something like that. The punchline to a lifelong joke, their dream being impossible from the start. That's just an idea off the top of my head though.