Just for interest and IME with first-world countries: If there is law to prevent an employee simply walking out, you can be sure there are equal or greater protections for employees so they can't be tossed onto the street. In such an environment, if it does reach Court it is almost entirely employees claiming personal grievance for unfair dismissal rather than employers seeking damages from somebody who hurt the firm by walking out suddenly. That may change for especially valuable/crucial employees but presumably employers have other means to keep such people happy in their work.

The myriad of reasons an employee can raise to justify their actions and the Court's respect for the usual imbalance of power between employer and employee means that this isn't as anti-employee as it sounds. It may even be the opposite. ;-)