Going very slightly off thread.
I spent many years in the media at a Television Director ( a reasonably “senior” position), but I would have been horrified if even the most junior member of my crew had addressed me as anything other than Luke. Absolutely infradig to address anyone, no matter how senior in the media as Mr/Mrs/Miss etc.
It must have rubbed off, cos’ I actually tell people now that my name is Luke, not Mr AFB. Causes much consternation in some places. I drive an expensive sports car and the Sales Director of a certain car company in Wiltshire apparently had to email all staff and tell them to call me Luke, because I didn't like Mr AFB. Bu@@er convention!!