You're telling me those are all the most non-professional hairstyles available? That this is a reasonable assessment? That fairly standard, well-kept, work-appropriate curly black hair is roughly equivalent to the pink-haired, three-foot-wide hairstyle that's one of the only white people in the "unprofessional" search?
Each and everyone of them is less workplace appropriate than, say, http://www.7thavenuecostumes.com/pictures/750x950/P_CC_70594... ?
Work a lot on adding even more examples, in order to make the algorithms as close as possible to the "average reality".
At some point we may even ultimately reach the state that the robots even collect intelligence directly in the real world, and not on the internet (even closer to reality).
Censoring results sounds the best recipe for a dystopian world where only one view is right.