There are enough vulnerable people to become rich off of? When I worked in sales the calculus was pretty simple - either you sell to these people to make money

There are enough vulnerable people to become rich off of? When I worked in sales the calculus was pretty simple - either you sell to these people to make money or you'll barely make money. The dirty little secret of success in sales is is scoping out people who can be manipulated. Most products being sold do not benefit the buyer. There is not enough ingenuity for that. The view that capitalism just creates a collection of voluntary exchanges that better both sides, is ludicrous.