Op, I think your husband is being naive to think that with money/status comes safety. And no way would I think "well gee, as long as my daughter is with high profile people, I don't need to know where she is." That's weird.
I agree with this. The "high profile" thing would make me less, not more, comfortable. People make very weird assumptions and excuse all kinds of odd things when money and status are involved. No one wants to offend or inconvenience VIPs. Basic safety issues can get ignored, sometimes one member of the "high profile" family is a weirdo (oh that's just "Uncle Joe"), etc. Uber-wealthy folks are used to not being questioned. For me, that wouldn't extend to taking my kid somewhere out of the country. I'm the parent of a young adult in their group, not their household staff. If there was an issue with me reaching out to confirm plans and exchange contact info for an intl trip, that's a red flag I wouldn't ignore and DD wouldn't go. I'm struck that this isn't common sense for this parenting crowd. Money isn't everything, folks.