I wonder why not. Too inconvenient for him? Wife has given up caring what he does?
Honestly, I don't do that either (for lunches, dinners, etc)...much less when I'm on travel. Having said that, though, when dealing with a subordinate, I never am in a room alone with a female subordinate...unless that room has LOTS of windows where we can be observed.
But OTOH, I'm also not a public figure that needs to be concerned with a random paparazzi snapping a picture and starting a whisper campaign.
Maybe.
Some people don't realize how fragile a marriage is until they have broken it by being careless.
I once had a wise minister say to me, "Few people wake up in the morning and say, "What a lovely day! I think I will toss my marriage away." But that is exactly what they end up doing. By setting up a few rules at the start of your marriage you can prevent that from happening."
Since he and his wife were married 68 years before death did them part (for about an hour) I thought that he probably knew what he was talking about.