>>280228873
I don't think it's strictly just his own safety he's worried about. The "rat fleeing a sinking ship" aspect is certainly there, but he's also clearly very distraught about what's happening to the Hero Association and acknowledges his own involvement in the situation and how he clearly did something really bad in helping Neo and undermining the Hero Association. He just thought Neo would still do good and pick up from where the HA left off (and they're really well organized so he has a compelling reason to think Neo is the better hero group), so him stealing HA data for his own benefit is a pretty harmless crime, right?
We'll see more of it when the Neo arc kicks off properly, but it's important to remember that McCoy makes a genuine effort to do his job right. He's certainly more than willing to make some underhanded moves to his own benefit when it comes to office politics, but he's fairly capable and an asset to his position for the most part. ONE have him enough depth to make both sleazy but not truly villainous, like many of his other characters, so him being forced to confront his own actions and gradually coming to realize that he does care about others and doing the right thing over his own self-benefit despite initially being driven by (and convicting himself to act because of) self-interest makes him a pretty unique and compelling character.
ONE really is an amazing author and I'm excited to see where he takes these characters next.