I started rewatching it recently (I haven’t seen the newer seasons). There is an argument that that plane was an accident. He lasered the hijacker and destroyed the controls. At minimum, it’s incredibly careless though, and he’s still at fault for it and for not really giving a shit about the people on the plane. It’s possible it’s on purpose, but they don’t make it explicit that he’s evil then. Only that he’s selfish.

The plane with the senator though? Yeah, he did that on his own on purpose.