google tells me there are some 1600+ billionaires today.
those are the guys (and a few girls) who are really dirty. you can't get (or stay) that rich without hurting people. this is the locus of greed that will sacrifice the planet rather than "give in to someone else having more than me". these are the high-stakes players, the ones who _really_ pull the strings. everyone else is just their string-puppet.
it's also a small enough number that we can closely examine every single one of these individuals to solidly _confirm_ that their avarice and power-broking is truly despicable, so we can confidently brand them as an enemy of the people. this will put them on notice, and give them an opportunity to "opt out" of their bad behaviors and gain our reprieve. let them keep their money and a lavish lifestyle, but only _if_ they can actually reign in their destructive actions.
recognizing the value of a nice sonorous phrase, i suggest "the filthy 1500", so we will set our focus appropriately.
and, given that these are world-class competitive bastards, i'd predict that many will work so they can _make_ the list.
-bowerbird