Not to mention they never have to deal with the "step one" of giving them a chance. Even if they would find them indispensable if actually hired due to being a 10x performer getting in the door is a challenge when they would rather pay attention to irrelevancies of posture than actual qualifications.

That sort of talent filtering for stupid reasons is very not new - going back at the very least sexist exclusion from fields and Jewish university quota caps (as in maximum number of Jewish scholars) - let alone cases where people with massive potential never had the resources for education.