Just another point here - Bill Clinton is not some random spouse hanging out on the periphery of some investigation.
Hillary's server may have been shared by: 1. Bill himself, 2. the Foundation, and maybe 3. Teneo.
Bill's aide, Justin Cooper, was the registrant of the server. Bill himself is in a way under investigation, albeit probably not a suspect or subject even, but he is a part of it.
Reading your comments, you seem to be driving this back to a strict legal or legal-ethics call. I tried to get away from that in my last point. I'm talking personal ethics. But I still don't think the comparison to a judge is totally inappropriate. Maybe I come from a place where influencing judges is par for the course. That happens here. It's not some wild conspiracy scenario, it's par for the course to expect it.
But on your last point about "bribery" - that is totally unnecessary. Lynch's life is federal work. The spouse of the president, an ex-president himself who will be the most important advisor in the next administration and the guy who appointed her to her first federal job, wants a meeting with her? Please. That's an obvious opportunity - or danger - for influence.
I think the correct response here is 'don't do the meeting', because of the danger of appearance of impropriety, but again, Lynch saying no to Bill Clinton? Come on. Please pull my leg and tell me how there is no chance for influence or slipped info here.