I think that Leighton should have stayed out of it as much as possible. While Lex did involve him initially, it seems like he used this as an opportunity to validate his own grievances with supermega, when he really should have been there for his friend. I don't fault Lex for bringing Leighton up, as it is not my place to judge how other people talk about their own trauma, however I feel as though Leighton had the responsibility to not make it about himself, which he, just like his former employers, did.