Okay, but I don't think the scenario you are describing is particularly relevant to the comic. This looks like a white collar job application, not a blood diamond mine or sweatshop.
So back to the point at hand. The question is, why do you want to work here? It's a super relevant question. If all that was important to you is money, you'd go work on an oil rig. But most people don't do that. Thousands of intangible factors someone might choose a workplace besides just for cash. Work/life balance. Personal interest. Comfortable work environment. Relevant experience. Proximity to home. Perks...
The point of the question or interviews in general is to stand out from other applicants. The answer "I need cash" doesn't make you stand out.
Accountability in the court of public opinion, the last line of defense. The public needs to understand that institutions will not save us. They are corruptable.