As far as I've seen, Don is more like calling someone uncle or grandfather,so Don Vito would be correct.
Also,I don't know of any Families that pay their members anything like a weekly or monthly salary. In fact,more often than not,it's the other way around.
Some Capos may require their men to regularly kick up a certain minimum amount ,plus , of course,their cut of any other earnings,
There may be some exceptions,but they would be few and far between.