I recently came across this, a case where it is very clear what the cost of creationism is.
An infant had a critical heart disease, and needed a heart replacement. A doctor gave her a baboon heart. The baby died after 21 days. When asked afterwards why he had used a baboon heart, considering the long evolutionary distance between the two species, this is what the moron answered:
“Er, I find that difficult to answer. You see, I don’t believe in evolution”
That, in a nutshell, is why NO ONE who sets their belief in an invisible magician before actual facts should ever be allowed to have any serious job whatsoever. Accept facts, or accept that you won’t be able to get any qualified job; that is how society should be arranged.