So your premise is that a company should draw out their interviewing process so that the top 60% of candidates will accept offers elsewhere and they can lowball

So your premise is that a company should draw out their interviewing process so that the top 60% of candidates will accept offers elsewhere and they can lowball the 40% that stick it out? And you justify this because they would only have a 10% chance of landing any of the good candidates? Let me guess, are you an actual hiring manager?