To begin with, the Icon of the in-game surveillance program is very obviously a spin on the symbol of the Illuminati. Triangle, one eye, Monkey, representative of the thing they do.

In the "Good"(??) ending of the game, The player character receives a bottle with the label: "Drink this Cold Beverage" and they follow this instruction. A headline in the newspaper (maybe a couple?) refer to a drug called D.C.B., short for "Dead Cold Buddy"c portraying it as dangerous. Upon following the instructions, the player has an out-of-body experience and meets the "3 Prophets", who are, respectively, President Walker, the Delivery Person, and your friend who introduced you to the club, each with weird monkey bodies. Is this heaven? I guess.
So, this human surveillance secret club has President Walker as one of its "prophets", whatever that means in the real world. Maybe that's part of why he won the presidency? More interesting is your Delivery Person. Come to think of it, isn't it sort of odd that regardless What food you order, They specifically deliver it? Or maybe that's normal in city environments like this, I wouldn't know, I live in the southwest. Suppose this person is part of the society and delivers personally to you as a chance to give very targeted, if cryptic advice. There's no way this monkey club isn't also spying on you, right?
This all works under the assumption that the vision is in any way significant and not just a DMT trip your brain generates while you OD on some drug.