Oil and Wine (as I’ve been instructed) were noted to be items generally relegated to the more affluent; not generally the poor.
So the rich will get to have their food, their wine, etc. because high costs will not be prohibitive for them.
The poor, of course, will suffer due to the high prices. Some perhaps even to the point of starvation.
We see this today: the wealthy really don’t care that we poor slobs are paying more for gas under Joe Biden, more for food, more for EVERYTHING.
Hence the deceitfulness of riches; I am reminded of the Rich Man and Lazarus.
Have you considered that oil and wine both represent the Holy Spirit? Perhaps this rider on the black horse has restrictions on who he can impact.