I disagree that physical locations matter much.
As Rush often says while broadcasting from some new location: "so long as I'm here, it doesn't matter where 'here' is."
Most large companies have branches in every metropolitan center, here and abroad.
So, where particular borders get drawn is of no concern to them, only that their customers, employees & investors are near-by.
And even "near-by" is not such an issue when people can communicate instantly and travel quickly around the globe.
Point is, these allegedly nefarious "power brokers" who have you so consumed with rage can live anywhere & everywhere, depending on their mood, or the seasons or some particular activity.
Regardless, they are almost all Big City Democrats.
Small town & rural Republicans are a different breed.
And in 1861 they were Big City Republicans. You say they can live anywhere, but for some reason they chose to live in or near very wealthy cities like New York, Los Angeles, Boston, Washington DC and Chicago.