There was a story of I think Rav Moshe, (It was an american Gadol from that time period, so I could be mistaken, but it was a well known Gadol). He was at some dinner honoring a big baal chesed. One of his talmidim came up to him and asked. “Rebbe , how can you attend an affair with mixed seating” . Rav Moshe (or whomever it was) said. The Honoree was a big Baal Chessed and warranted the Kavod of him attending the dinner honoring this person. Rav Moshe then sat next to his Rebbitzen.
I’m not sure what you are trying to prove from this story. Were you arguing with anything I said on this thread, or was it just a tidbit of information related to my post?
([BTW, there is a big difference between a Chasuna and a dinner in regards to the taaruvos problem.])