It's more than large profit margins, it's the constant deluge of propaganda every day that gnaws at people's insecurities. I'm too fat, I'm too skinny, I'm not strong enough, I'm not active enough, I'm not healthy enough, I don't exercise enough, I don't hydrate enough, I don't eat right enough, I'm not pretty enough, I'm not handsome enough, I'm not popular enough, ad nausium. Every day, to an entire population, for
generations.
There's a saying in business, you don't sell product, you sell emotion. They are selling, "I want to feel better about myself." They can't sell that until they knock people down several notches. That's what it takes to get people to pay $40 for a shirt then can get for $7.
Just about everyone alive has grown up with that. Let that roll around in your head a while. I think it's worse in scope and what it does to the population.
I've never been screwed by a payday loan service, but I've certainly been subject to that type of advertising for as long as I've been alive, and it's gotten progressively more sophisticated.