Why just biology teachers? Why not all teachers who have molested students? If you can lump all "fundamentalists" together, certainly we can lump all teachers together. They are all the same, right?
I would expect a better argument from you, though it is late on a Friday so I'll give you a pass.
If evolution corrupts, then biology teachers should be absolutely corrupted. Let's compare the number of biology teachers who have been convicted of diddling children with the numbe of ministers convicted of diddling children.