I don't know if it's a plot hole or a clue. Not knowing the charges, it's hard to speculate, but I don't think you have to punish a father for the sins of their son and vice versa (real put any relation in here - siblings/spouses/lovers].
ETA: But with this show a lot of people have secrets/are shady so maybe he has something on the board (I think that's who would hire and fire people] so they can't fire him. Gah!
I was up pretty much all night reading about possible plotholes/clues about everything from props to set dec to timelines, so I'm reaching Claire Danes on Homeland levels o