Two options open up for the HNI: one, the standard, traditional one, of moving to a tony country, or at least to a 'world' city, parts of which even rich people don't mind being seen walking in (think Central Park, Covent Garden, Saint-Germain-des-Pres...). Two, pour in money into your country/city as if it's all an extension of your living room to make your 'area of habitation' match your status and taste.