Just claiming an opposing stance isn't enough to validate it. This is just a silly opinion for the sake of argument.
I live in a country with a 40-45 hour max work week. After that, you pay 1.5x rates. Saturdays are 1.5x rates for salaried workers and Sundays and public holidays are 2x. There are very serious legal consequences for trying to skirt the system.
As paid overtime becomes the norm, it becomes another metric to track. Project managers that routinely run into overtime are punished. The same as any other expense caused by analysis failures.
You seem to think paid overtime suddenly incentivises a company to just up the price of their product. Like it was equivalent equivalent the rising price of materials. It just doesn't work that way.
Not everyone is a piss poor planner who can't react to changes in environments. Plenty of projects I've worked for have been pretty close to budget. When overtime is required, we talk to the customer. Their money, their decision ultimately.
If your costs unexpectedly skyrocket, you're not keeping customers.
I'm getting a little bored of these "qualification by differnce of opinion" reasoning. You've gotta actually qualify your opinion