In the Mormon temple ceremony, Satan is explicitly linked to capitalism, and money is the means by which Satan “rules with blood and horror.” Jonathan Hickman is not a Mormon and Mammon is more an ancient god than a Christian demon, but the underlying theme remains: black magic requires human sacrifice, and capitalism with all its excesses is the means by which this is carried out in the modern day, with the occasional detour into sacrifices of the more conventional kind (early in the first issue, we find out that the bankers and brokers who supposedly committed jumped out of windows during the Wall Street Crash of 1929 did not commit suicide, but were thrown out to keep the magical consequences of the crash from hitting the people at the very top).
It is the only time that you will see someone pay a dreadful price to ask questions of a god, and ask something as banal as “What causes a market crash?”
If this appeals to you then I recommend getting the series in print. There are many lovely infographics, copies of emails between characters, and other such tidbits scattered throughout each issue and, having read them in both digital and print form, I can say that this is one of the few occasions in which the print form is indisputably superior.
You can purchase The Black Monday Murders directly from Image Comics at this link, which also has options for purchasing through Barnes & Noble, Indiebound, and comiXology. I don’t make any kind of affiliate compensation if you go there, but I do hate Amazon and that’s where you’re likely to go otherwise.