My point is that any top institution - not just limited to the top among private companies - determines who may be admitted to a particular post on the basis of being able to handle the institution's worst elements while still being sufficiently skilled to meet said institution's standards. You'll see this in top schools, top law firms, the higher echelons of certain government agencies, top non-profits and think-tanks, and other such organizations.
I never said anything about top private companies. Abuse happens at every level of organizations. There is a difference between admitting someone on the basis of how well that person can compete in a high performing environment and admitting someone based on how willing that person is to take sexual abuse and all the other nefarious practices that some organizations develop during their culture building phase.