Sure, a bit. Uber's the same thing. It's designed to make maximum use of crazy people and force the others to live up to that standard or be fired.
I'll define 'crazy Uber people' not as 'danger to customers', but 'people who are bringing more value in terms of vehicle, skill and desire to please, than they are getting back in pay and benefits'. So the crazy Uber person is the one who keeps buying a new Lexus or whatever, vacuums their car three times a day and busts their ass to outperform all the other Uber drivers, so they can continue to win out over anybody else seeking to be a driver.
The key factor is that they are giving more than they get back, in the belief that they're cornering some kind of market or buying in to something important.
Another way to be a crazy Uber person is to put more depreciation and wear and tear on your car than you can afford to repair (or replace). It's easy to be crazy in these ways. It's externalities which are easy to overlook. These Amazon/Uber business models are designed to leverage that kind of crazy as hard as possible, and kick out everybody who's not willing to lose (one way or another) on the deal. Psychology is useful in getting people to buy into this stuff.