The double secret reverse difference principle

So a while back I was thinking about Kim Jung-Il, and I thought, "you know, he would actually be able to live more opulantly, and really be a more successful overlord, if he opened up his society a little." Think about it. Even low ranking members of the ruling class of the United States enjoy power and luxury that Kim doesn't, simply because the economy is not bankrupt. (Yet.)

Moreover, some of Kim's failure as a martinet come not from the lack of openness but from a lack of justice. North Korea suffers from persistent famine in part because of an "army first" policy of food distribution, which basically means that the army hoards all the food. (I believe this is actually a common cause of famine, and that Sen probably says as much some place.) If N. Korea had a more just food distribution system, there wouldn't be famine, the economy would be better, and Kim could have concubines that aren't emaciated.

All this lead me to ask: "has someone ever developed the reverse difference principle?" Rawls's difference principle is a famous principle of justice. It says that we should only tolerate inequality to the extent that it benefits the worst off. Image you have two societies

Society A: Everyone is economically equal, but everyone is quite poor

Society B: There is some economic inequality, but even the poorest people are better of than the people in society A

Rawls asserts that any rational person would want to live in society B.

Now his claim is basically aimed at people who assume that equality is a good thing, and are wondering when to accept inequality. What about people like Kim, who want to be tyrants, who want to be on top of a massivily unjust system. When should someone like Kim rationally accept a little fairness. Well lets imagine two societies.

Society C: There is an astonishing amount of economic inequality, but even the God-emperor can't get reliable electrical service.

Society D: There is less inequality, but the God-emperor lives much more resplendantly than the god emperor of society C.

The reverse difference principle is a rule for particularly conniving despots. It says "accept equality only to the extent that it benefits the best off, that is, you."

The reverse difference principle, if applied, might even mean that someone will let Kim know about his hair

Has someone thought of this before? If not, can this blog count as first publication of the concept, which could then be named after me?

If it has been thought of before, please send me the citation, and I will sing its praises far and wide. I suppose it is possible that I have even read about this before, and don't remember it, in which case, I will profess total unoriginality.