Good question. Since Zoom is mainly a buisness tool and a lot if high profile companies rely on it - if there's even the suspicion that zoom uses collected data to steal passwords or company secrets, they will bring the hammer down in the most gruesome class action lawsuit. Companies pay good money for the buisness license and Zoom will certainly not bite the hand that feeds them.
However, this might not apply to private Zoom users. And I'm certain that Zoom does some shady stuff behind the scenes with the data they collect on private individuals beyond simply "improving our services".