I think we might be arguing about different things here. You’re saying that it worked for OP, that is fine, I don’t disagree with that, however I do disagree with this practice, because as a whole it is not good for us workers in this industry. This behavior is ripe for abuse, and companies do abuse it unless there is a collective action against it (through regulation, union contracts, etc.)

Like you said, if you work for a company which expects this from you, and you quit as a result, they can simply hire someone else that takes the abuse, and that is not a good prospects for us workers in this industry. Which is the reason I’m asking OP not to do this. Even though they had fun and were handsomely compensated, this behavior does a net disservice for the rest of us.