It's not like job searches are the only context where you can get ghosted. It happens often enough in friendships, social activities, finding romantic partners, etc.
The more and more rude interactions like ghosting we have, the less human we become. Relationships become transactional instead of meaningful. On the other hand, talking to people as humans and leading with your humanity first makes you a better human.
I didn't want to bring up ghosting in other contexts because the conversation has been more focused around the job market. The idea that everyone hates getting ghosted even if they do it themselves is one I picked up from articles about dating, so there is still shared relevance.
The main relevant difference between the former and all of the latter is that we're generally fine with regulating the labor market, but (liberals at least) are generally much less willing to regulate the interpersonal relationships market.
(The other relevant difference is that the labor market involves a significant unilateral power imbalance between the employer class and the employee class, which is the biggest contributing factor which leads to the above difference)