“How does this align with our core values?” = This sounds like a terrible thing to do to whomever.
Probably the “smartest” looking thing to do for a meeting is to refuse to attend any meetings that don’t have agendas. 
The next thing is to make sure that agreed-upon tasks get assigned with due dates and follow ups scheduled.
I once had a boss who would just invite me to meetings knowing that I would basically hold the meeting on whatever was asked for on the fly. I got dragged into so many meetings where no one knew why we were there, they just thought we should have a meeting on some vague topic.
They weren’t pointless meetings because I have the other kind of agenda. 
But I could have prepared something. (If I had to do this again, I would make a thousand slide powerpoint with pre-prepared topics.)
Anyway, my last several bosses have understood that’s a crappy thing to do. If they want me to hold a meeting, they tell me what they want me to hold it about, give me some parameters, and are available to answer questions if I have any.
I don’t get dragged into meetings where tips like this would help. 
