But that's life in a tribal culture. People think honor killings/subjugation of women are just a function of religion but it's much deeper, more entrenched than that. In tribal, patriarchal cultures, male lineage is overwhelmingly important and denotes a family's place in society, financial opportunities, etc. As said before, since women are the vessals of future wealth and family prosperity, keeping her beyond reproach (under a veil, locked in the house, etc) is a priority. Any tinge of impropriety is a smear against the purity of the family lineage and must be snuffed out. A family's community standing and finances can depend on it.
Obviously, this way of thinking doesn't bode well in the west.