[The Urban Sombrero]

Sombrero the only message the black horse conveys is the coming famine associated prophetically with The Great Tribulation. There will be a time of false peace, as in the white horse and his rider the anti-Christ, the false peace will be shattered nearly as soon as it is conceived with the emergence of the red horse, War. famine always follows war as in the black horse, then the pale horse comes and with him comes pestilence or disease.

You mentioned the balances in the hand of the rider on the black horse. He had a scale in his hand because the scarcity of food will make it precious enough to weigh and ration with great care. No inequality, no message, just judgment which is in the case you mentioned comes in the form of famine.

"But don't touch the oil and the wine." Scarcity, famine, ...common people starve...the wealthy? "Oil and wine." Surely you have seen this? It's fairly standard commentary on 6:6.