It seems to me those EA and Google billboards are going to help you attract smug, arrogant people who may be talented, but whose talents are almost certainly go

It seems to me those EA and Google billboards are going to help you attract smug, arrogant people who may be talented, but whose talents are almost certainly going to be overshadowed by their own egos, or people who are good at looking up trivia and may or may not be talented otherwise. In other words I don't see how such gimmicks work to actually find real talent that can actually be leveraged.