> It freed slaves
Only if they converted. Otherwise the slavery never stopped to be OK for that religion (those paying the "protection" are also not allowed to be enslaved). See the (currently insulting) word used for slaves in South Africa, where the slaves from the northern African areas were sold by the adherents to the said religion. Also in the other parts of the world:
http://www.lankalibrary.com/cul/kaffirs.htm
> gave rights to women
Which?