> You completely hit the hammer on the head
http://dannybaranowski.blogspot.hu/2012/06/idioms-for-idiots...
Point well taken.
You are discounting a strong trend: expensive products become commodities.
Plus there are degrees of richness. It's easy to name examples where rich people have been trusting their personal information to faceless entities for years.
> to match their other unreasonable status enhancing purchases
You don't know the purchases of the audience you are referring to.
As if any 'rich person' would spend any amount of time texting some random employee and give them access to his e-mails. If I were rich and would deem myself in need of a PA I would want to know them very well before allowing them access to my personal information and I would expect them to take care of certain things without me having to tell them what to do all the time, let alone text them.