Well, 90% of midwives have not been through labour because they go to uni straight from school. Personally I think it should be one of the criteria - how can you help some on give birth if you haven't done it yourself? This is the case with women wanting to be a Doula (a professional who is there to help the mother and her partner/children etc during childbirth and the post-partum period)
There is a male midwife at the hospital I gave birth at. I didn't see him, but he delivered my friend's baby. The way I was feeling, I wouldn't have cared who was at the foot of the bed as long as they got the baby out and ended the pain!