[@NarcissisticPotato]Just do what you want, I gave my character a dark story line because I wanted to have a character with a dark past who joined for a different reason than others. 

I always thought it made little sense for characters to just decide to be good and make atonement for what they've done as though the indoctrination was so simply broken.

Holden is here because he fears the atrophy of his soul, not because he wants to be a hero. He wishes to learn if he has a purpose, that's it. He desires to change on a fundamental level, to experience what he is and what it means to be him. Quite honestly, I'm perfectly fine if he should go down the path of villainy.


Anyway, my point is, do whatever you want. Your character won't be defined by their backstory, diversity comes from present action not past deeds. 

It might be a fun challenge for you to make a name for yourself and be different from all the rest, right?