So you don’t CARE if your single vote is drowned in a deluge of 500 false one for your opponent?
Not so much that I’d condone anyone breaking the law on the off chance that they might be able to show the system was subject to that kind of vulnerability.
If he had evidence of that BEFORE the hack, then the hack was not necessary. If he executed the hack in order to find out WHETHER any such evidence existed, then he cannot use the possibility of uncovering illegality as a justification for the illegal hack (just like I can’t go trespassing in all the homes in my neighborhood because maybe someone inside is doing something illegal).