no, thats not why. its a breeders decision who they entrust their offspring to, checks or no. background checks are necessary because the citizens of the us subsidize colleges and universities.
It's not either or friend. Professors are subsidized because they are involved in the business of educating young minds. They should be held to a higher standard, including background checks, not only because of those subsidies, but because they are accountable to the "breeders"(I call them parents) of those young minds.